Oxygen is required for burning fuels. The chemical activities that occur during fire are aided by oxygen. This is referred to as oxidation.
Any flammable material can be used as fuel. It is distinguished by its moisture content, size, form, number, and placement throughout the terrain. The amount of moisture impacts how readily it may burn.
Air contains around 21% oxygen, and most burns require at least 16% oxygen concentration to ignite. When fuel burns, it combines with oxygen in the surrounding air to produce heat and combustion products (gases, smoke, embers, etc.).
Fire happens when combustible fuel becomes gas in the presence of oxygen at extremely high temperatures. The presence of flames indicates that the gas has been heated. Lower-temperature sources of fire can also occur. Combustible materials, such as smoldering embers, can attain their ignition temperature over time.
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foreign peptides derived from which three types of antigens would most likely be processed and presented on class i mhc molecules?
Most likely, class I mhc molecules would process and present foreign peptides obtained from peptides from viruses, peptides from intracellular bacteria, aberrant proteins in malignant cells, and antigens.
When foreign proteins enter a cell, they are disassembled into peptides. These peptides, usually referred to as antigens, may originate from pathogens such intracellular bacteria or viruses. The major histocompatibility complex proteins bring foreign peptides to the cell surface and offer them to T lymphocytes (MHC). Leukocytes (white blood cells) that fight illness are activated by an antigen, which promotes an immune response. On invaders like bacteria, viruses, parasites, fungus, and donated organs as well as on aberrant cells like cancer cells, antigens may be present. Study up on antigens.
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How does crossing over lead to genetic variation ?
Genetic data is transferred between homologous chromosomes during crossing over. Through this exchange, novel gene combinations are formed, increasing the genetic diversity of the progeny.
Homologous chromosomes (one from each parent) pair along their lengths during meiosis. Chiasma points are where the chromosomes cross. The chromosomes split and reassemble at each chiasma, swapping some of their genes. Genetic variety is produced by this recombination. The exchange of genetic material between non-sister chromatids of homologous chromosomes, or crossing-over, takes place during prophase I. Remember that homologous chromosomes align in pairs, gene for gene down their whole length, generating a configuration with four chromatids known as a tetrad during prophase I.
A new mix of genetic data for the cell for a particular trait results from crossing over. By crossing over, organisms are prevented from being genetically identical from generation to generation. Variations in the genetic material that is passed down through the generations are made possible via genetic recombination. To boost genetic variety, chromosomes that are similar to one another cross across. A piece of one chromosome is swapped for another during crossing over. A hybrid chromosome with a distinctive genetic material pattern is the end outcome.
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Which of these organisms convert atmospheric nitrogen gas to a form that can be utilized by plants? A) bacteria B) animals C) fungi D) protists
Nitrogen gas in the atmosphere is converted to ammonia by nitrogen-fixing bacteria in the soil and in the root nodules of certain plants, hence option A is correct.
What is nitrogen fixation?Prokaryotic microorganisms called nitrogen-fixing bacteria are able to convert atmospheric nitrogen gas into "fixed nitrogen" molecules like ammonia that plants may use.
Since atmospheric nitrogen (N2) cannot be directly absorbed by plants, it must first be changed into a form that can.
Therefore, this process is known as nitrogen fixation, and microorganisms are crucial to nitrogen-fixing, hence option A is correct.
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the simple stretch reflex employs mechanoreceptors known as golgi tendon organs to detect the degree of stretch experienced by a muscle. t or f
The simple stretch reflex employs mechanoreceptors known as golgi tendon organs to detect the degree of stretch experienced by a muscle is true.
Tendon Golgi receptors, which are located inside a tendon close to its connection with a muscle, are the sensory receptors for this reflex. Tendon organs sense and react to changes in muscle tension brought on by muscular contraction, as opposed to passive stretching, which is detected and responded to by muscle spindles.The Golgi tendon reflex functions as a protective feedback system to regulate the tension of an active muscle by inducing relaxation before the tendon tension rises to a level that could harm it. The Golgi tendon organ's afferent neuron first fires into the central nervous system as a load is applied to the muscle. Second, muscle relaxes as a result of an IPSP inhibiting the motor neuron from the spinal cord.To know more about tendon check the below link:
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Why would two different species have similar features or behaviours
A.) similar DNA
B.) different time periods
C.) similar environmental pressures
Two different species have similar features or behaviors because of the similar environmental pressures that is present in option C. Many species that live in a similar environment show similar behavior.
What is an environment?In the environment, there are different types of species, such as dog species, cat species, etc., and all of them are different from each other. They have different genes in their DNA, but as they live in a particular environment and face similar environmental pressures, they show similar behavior patterns.
Hence, two different species have similar features or behaviors because of the similar environmental pressures that is present in option C.
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An original section of dna has the base sequence agcgttaccgt. a mutation in this dna strand results in the base sequence aggcgttaccgt. what type of mutation does this change represent?
This change represents frameshift mutation.
An exchange inside the regular DNA collection at a specific gene locus. despite the fact that the time period often has a poor connotation, mutations (such as polymorphisms) may be harmful, beneficial, or neutral in their impact on mobile characteristics.
A mutation is an exchange that happens in our DNA collection, both because of mistakes when the DNA is copied or as the end result of environmental factors including UV mild and cigarette smoke.
Mutations can affect an organism by using changing its physical characteristics (or phenotype) or they may affect the manner DNA codes the genetic statistics (genotype).
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explain why the anterior oblique position id preferred over the posterior oblique position of certain projections? identify those projections
A central ray trajectory across a plane that is inclined to the transverse plane or coronal plane corresponds to an oblique projection.
Preoperative oblique-projection plain radiograph films are beneficial for evaluation of the pedicle size. The contralateral pedicle is shown as an oval projected onto the vertebral body in an oblique projection, revealing its outer and inner diameters. Axonometric projections are better for elliptical forms than oblique position, which is better for "mechanical" viewing but lacks perspective forshortening. Oblique position also facilitates size comparisons and shows some of the object's three-dimensional look.
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physical, mental, and social well-being, not just the absence of disease or infirmity is the holistic view of health valued by nurses.
The accurate alternative is A Health. According to WHO, fitness is “a whole kingdom of physical, intellectual and social wellness, and now no longer simply the absence of ailment or illness.”
As in keeping with the definition, someone can not be stated to be wholesome simply via way of means of a ailment-unfastened condition. The WHO charter states: "Health is a kingdom of whole physical, intellectual and social wellness and now no longer simply the absence of ailment or illness."
An critical implication of this definition is that intellectual fitness is extra than simply the absence of intellectual problems or disabilities.The WHO definition of fitness is formulated as “Health is a kingdom of whole physical, intellectual and social well-being and now no longer simply the absence of ailment or illness” physical, intellectual, and social wellness, now no longer simply the absence of ailment or illness is the holistic view of fitness valued via way of means of nurses.
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What Is the Carbon Cycle? Photosynthesis, Decomposition, Respiration and Combustion
In the carbon cycle, carbon dioxide is removed from the atmosphere by plants through photosynthesis and added to the atmosphere by animals and plants during cellular respiration. Burning fossil fuels increases the amount of carbon dioxide released into the atmosphere, which causes global warming. Option (a) is correct.
Thus, carbon can be found in a variety of substances, including coal and the hydrocarbons glucose and carbon dioxide. But today, we'll focus on the short-term carbon cycle, in which carbon simply circulates through the environment over a few days, weeks, or years. Photosynthesis: Process of photosynthesis, using photosynthesis, plants remove carbon dioxide from the atmosphere. Despite making up less than 1% of the atmosphere, carbon dioxide has a significant impact on life.
Nutrient Cycle: Decomposition of Plants can develop primarily by utilizing carbon dioxide, water, and sunlight. Animals then use food as fuel, exhaling CO2 and using oxygen. Alternately, they rot, deteriorate, and die again over the course of millions of years. In other words, through a process called respiration, plants use solar energy to break down the same carbon dioxide in the air. It converts that same carbon into plant material through photosynthesis, which then releases oxygen once more. Combustion, is the energy produced by burning fossil fuels is used by our automobiles. Carbon, like carbon dioxide, is a pollutant. Fossil fuels are extracted, and then they are burned to release energy. But carbon dioxide is returned to the atmosphere as a byproduct of burning.
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Correct Question:
What Is the main function of Carbon Cycle?
a. Photosynthesis
b. Decomposition
c. Respiration
d. Combustion
parent 1 is heterozygous for both the ""a"" and the ""b"" alleles. parent 2 is homozygous recessive for the ""a"" allele and homozygous dominant for the ""b"" allele. what are the possible gametes each parent can produce in regards to these two traits?
If parent 1 is heterozygous for both the "a" and the "b" alleles, this means that they have one copy of the dominant "A" allele and one copy of the recessive "a" allele for the "a" trait, and one copy of the dominant "B" allele and one copy of the recessive "b" allele for the "b" trait.
This means that parent 1 can produce two different types of gametes for each trait: those containing the "A" and "B" alleles, and those containing the "a" and "b" alleles.
Therefore, the possible gametes that parent 1 can produce in regards to these two traits are "A"/"B", "A"/"b", "a"/"B", and "a"/"b".
If parent 2 is homozygous recessive for the "a" allele and homozygous dominant for the "b" allele, this means that they have two copies of the recessive "a" allele for the "a" trait, and two copies of the dominant "B" allele for the "b" trait. This means that parent 2 can only produce gametes containing the "a" and "B" alleles.
Therefore, the possible gametes that parent 2 can produce in regards to these two traits are "a"/"B".
When the gametes from both parents combine during fertilization, there will be four possible combinations of alleles for each trait: "A"/"B", "A"/"b", "a"/"B", and "a"/"b".
These combinations will give rise to different genotypes and phenotypes in the offspring, depending on the dominant and recessive nature of the alleles.
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how could dna extracted in these procedures be amplified for further analysis in a biomolecular laboratory. explain the polymerase chain reaction in your answer.
The copying process, known as polymerase chain reaction (PCR), uses an enzyme (polymerase) to replicate DNA regions in a test tube. By repeating the copying process, a small number of DNA molecules can be reliably increased up to billions within several hours.
When Dr. Kary Mullis found that DNA could be replicated in a lab much like it is in the natural world, DNA testing advanced substantially.
An enzyme (polymerase) is used in the polymerase chain reaction (PCR), a copying procedure, to replicate DNA sections in a test tube. A modest amount of DNA molecules can be reliably multiplied by billions in a matter of hours by repeating the copying process. A biological sample the size of a quarter is needed for RFLP analysis, while millions of copies of the DNA found in a few skin cells can be produced using PCR. The laboratory may be able to evaluate DNA evidence that has been severely damaged because PCR analysis only needs a tiny amount of DNA. While identifying, gathering, and preserving DNA evidence, more consideration must be given to contamination issues because the sensitive PCR technology replicates all DNA present in an evidence sample. Heat is applied at the beginning of the procedure to separate the DNA strands from the initial double-stranded DNA molecule, creating templates for each stand.
The complementary strand is subsequently created by the Taq DNA polymerase using nucleotides after primers have been added to the template strand. Since Taq polymerase can endure high temperatures, it is specially used. An extension is a procedure by which additional nucleotides are added, whereas annealing is the procedure by which primers are joined to the DNA strands.
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During transcription, dna is read by an enzyme called ____ and produces ____ ____, abbreviated mrna.
PLSSS HELP IF YOU TURLY KNOW THISS
Answer:
Yellowstone was the first national park in the US
9. Draw the arrow (---->) to show the direction of diffusion of water. Label the area of high
concentration (H) and low concentration (L).
Answer:
The arrow should be pointing to the water molecules going into the circle.
Explanation:
Since it's water, it's always going to try to reach equilibrium. Equilibrium means a state in which opposing forces or influences are balanced. Which means that the amount of molecules should be even. So in this case, the water molecules from the outside of the circle will move to the inside until there are 7 molecules on both sides.
1. What are the differences between carbohydrates and lipids?
2. What are their similarities?​
The key differences are: Carbohydrates are polar and hydrophilic, which makes them easily soluble in water. Since lipids are hydrophobic and nonpolar, they do not combine with water.
Carbs are hydrophilic because of their OH bonds. OH bonds are absent in lipids. Your cells can quickly get fuel from carbohydrates, however lipids may be stored as energy in your fat tissue for later use. Lipids are a structural component of hormones and membranes as well as a source of fat-soluble vitamins.
Similarities: They all contain the element carbon since they are all organic molecules. Proteins have these three elements plus one or more of the following: nitrogen (N), Sulphur (S), or phosphorous (P). Lipids and carbohydrates both contain carbon (C), hydrogen (H), and oxygen (O); proteins do not (P).
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an environmental activist is working diligently to preserve the nesting habitat of a particular bird species without assessing how it might affect the human population in the surrounding environment. how would the environmental justice movement clash with this activist? a. the activist does not understand what the specie needs and is pushing for something that could be harmful. b. the activist needs to donate money as well as his time. c. the activist has not recognized that residents of the area rely on the land where the birds nest for subsistence. d. the activist is too vocal and is losing the sympathy of others.
The environmental justice movement clash with this activist is the activist needs to donate money as well as his time.
What about environmental justice?Environmental justice is the equitable treatment and meaningful participation of all people in the creation, implementation, and enforcement of environmental laws, regulations, and policies, regardless of their race, color, country origin, or level of income.Environmental justice is a social movement that aims to stop the unfair exposure of disadvantaged and marginalized groups to the harmful effects of resource exploitation, rubbish disposal, and other land uses.Numerous research produced by the movement reveal that exposure to environmental damage is unequally distributed.The foundation of environmental justice (EJ) is the idea that everyone has a right to be protected from environmental contamination as well as to live in and enjoy a clean and healthy environment.In order to clean up and rebuild our cities and rural areas in harmony with nature and to protect the cultural integrity of all of our communities, environmental justice reinforces the necessity for urban and rural ecological policies.Learn more about environmental justice here:
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5’ GCGACUAAAUUU 3’
What is the sequence of amino acids that will be translated from the mRNA
The process of mRNA translation is present in essentially all biological systems. Following the transcription of the genetic information from the DNA to the mRNA, the genetic codons are translated from mRNA to protein via ribosome translocation in this process.
What amino acids that will be translated from the mRNA?The mRNA is then dragged into the ribosome, where it is translated into an amino acid sequence, utilizing the tRNAs as adaptors to add each amino acid. In the proper order to the end of the expanding polypeptide chain when its codons come into contact with the ribosome's active site.
Therefore, 3’ CGCTGATTTAAA 5’ is the sequence of amino acids that will be translated from the mRNA.
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you have a suspension of chloroplasts with thylakoid membranes that are permeable to protons. which stage(s) of the light-dependent reactions will not occur in these chloroplasts? (check all that apply.)
The Chemiosmosis stage of the light-dependent reactions will not occur in these chloroplasts.
In chloroplasts, chemiosmosis moves protons from the stroma to the thylakoid space, whereas in mitochondria, it moves protons from the intermembrane space into the matrix. During cellular respiration, chemiosmosis includes the pumping of protons through unique channels in the membranes of mitochondria from the inner to the outer compartment.
It involves the thylakoid in the chloroplast. ATP synthases and a transport chain specific to this membrane system are present. In contrast to chemiosmosis in mitochondria, the energy source is different. It transfers protons to the thylakoid from the stroma.
The complete question is:
You have a suspension of chloroplasts with thylakoid membranes that are permeable to protons. which stage(s) of the light-dependent reactions will not occur in these chloroplasts? (check all that apply.)
(A). Primary photoevent
(B). Charge separation
(C). Electron Transport
(D). Chemiosmosis
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in the nasal cavity, what is the name of the tiny hairs that move mucus to the pharynx?
In the nasal cavity, the tiny hairs that move mucus to the pharynx are called Cilia.
Cilia are tiny hair-like structures that continuously move in a waving or slashing manner, progressing mucous upward toward the pharynx so that trapped microbes or particles can be coughed up.
Cilia are tiny, narrow, hair-like structures found on the exterior of all mammalian cells. They are primitive in essence and may be single or numerous. Cilia are important for locomotion. They also participate in mechanoreception. Ciliated organisms are those that have cilia.
The cilium, also known as the cilia, is a membrane-bound structure found on most eukaryotic cells as well as certain microbes known as ciliates. Cilia are not found in bacteria or archaea. The cilium is a thin threadlike projection that protrudes from the exterior of the significantly larger cell body.
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In individuals with chimera, what is the distribution of the secondary dna in the body?
Human chimeras are individuals with several DNA sets. Although it sounds like something out of science fiction, it can actually occur organically.
Why does DNA function the way it does?DNA holds the instructions required for a creature to grow, endure, and procreate. DNA sequences need to be translated into instructions that can be utilized to make proteins, that are the intricate molecules that carry out the majority of the work in our bodies, in order to perform these activities.
What is contained in DNA?Adenine (A), cytosine (C), guanine (G), and thymine (T) are the four fundamental "bases" or "building blocks" of DNA (T). The instructions in the genome are formed by the order, and sequence, of these nucleotides. The molecule of DNA has two strands. DNA has a distinctive "double helix" form that resembles a twisted ladder.
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at short focusing distances, ciliary muscles contract. what effect do these contractions have on the suspensory ligaments?
At short focusing distances, ciliary muscles contract causing the suspensory ligaments to tighten.
The ciliary muscle is an integral muscle of the eye that is constructed as a ring of smooth muscle in the middle layer of the eye, the uvea (vascular layer). It regulates the passage of aqueous humor into Schlemm's canal and governs accommodation for observing objects at different distances.
A suspensory ligament is a ligament that provides support to a body part, particularly an organ. The suspensory ligament protects the fetlock from hyperextension (i.e., falling too low) during exercise. The ligament begins in both the fore and hindlimbs at its connection to the back of the upper cannon bone.
When the ciliary muscle relaxes, its diameter increases; when the suspensory ligaments tighten, the lens becomes thinner. This occurs when concentrating on a celestial object. When the ciliary muscle contracts, the lens becomes much more circular and has more focusing power because the pressure on the zonular fibers is reduced. When the ciliary muscles relax, these fibers contract, pulling the lens out and creating a flatter shape with less focusing power
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What would be the consequence of ectopically expressing Hoxd10 throughout the developing mouse limb bud?
A. converting the thumb into a middle finger.
B. converting the thumb into an index finger.
C. converting the index finger into a middle finger.
D. converting the index finger into a thumb.
E. converting the middle finger into an index finger.
F. converting the middle finger into a thumb.
The consequence of ectopically expressing HoxD10 throughout the developing mouse limb bud will be: (B) converting the thumb into an index finger.
HoxD10 is a protein that in encoded by the HoxD10 gene. The gene is located on the chromosome number 2. It is actively present in the developing limb buds where it helps in specification and differentiation. The protein is actually a sequence specific transcription factor.
Limb bud is a small projection formed during the early phase of limb development. It specifies the region from where the limb will develop. The bud is the result of interaction between the ectoderm and the mesoderm.
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a condition in which there is an excessive accumulation of fluid within the tissue surrounding the testicle, which causes a scrotal mass is known as .
A hydrocele is a condition in which there is an excessive accumulation of fluid within the tissue surrounding the testicle.
A form of scrotal enlargement known as a hydrocele (HI-droe-seel) happens when fluid builds up in the flimsy sheath that protects a testicle. Hydrocele is frequent in babies and typically goes away untreated by age 1. A hydrocele can form in older boys or adult males as a result of scrotal inflammation or damage.
A hydrocele typically causes no discomfort or harm and may not require any medical attention. But to rule out other causes, visit your doctor if your scrotum is swollen. The painless enlargement of one or both testicles is sometimes the only indication of a hydrocele. The weight of a large scrotum can be painful for adult guys with hydrocele. In general, discomfort grows along with an increase in inflammation. In certain cases, the swelled area changes throughout the day, getting bigger in the afternoon.
The complete question is:
A condition in which there is an excessive accumulation of fluid within the tissue surrounding the testicle is known as a _____.
a. hydrocele
b. priapism
c. inguinal canal
d. inguinal hernia
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explain how edge effects, selective pressures, and overall fitness affect the survival of organisms living in fragmented habitats.
Edge effects are caused by a sudden change in the natural habitats of two nearby ecosystems that are quite different from one another.
Due to fragmentation that affects wellbeing, some traits have developed. Physical or behavioral characteristics that were beneficial earlier may no longer be so when a habitat is fragmented. The most important characteristic for most species to promote survival is the capacity of animals to disperse, or migrate to various habitat regions. Most of us reside in an environment that is continuously changing. Wildlife is not an exception. These modifications may take place suddenly, as in the case of a forest fire, or gradually, as in the case of global warming. Some modifications are made by humans while others are a result of natural evolution (anthropogenic).
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abnormal crackle-like lung sounds heard through a stethoscope during inspiration.
A bruit is an aberrant sound or murmur detected during auscultation of an artery, whereas a crackling is an abnormal crackle sound like the lung sound heard through a stethoscope during inspiration.
What is lung sounds ?
With a stethoscope, you can hear the lung sounds the best. The term for this is auscultation.
All areas of the chest region, including the area above the collarbones and the bottom of the rib cage, can hear normal lung sounds.
The medical professional using a stethoscope may hear regular breathing sounds, reduced or missing breathing sounds, and aberrant breathing sounds.
Reduced or absent noises may indicate:
lungs' air or surrounding fluid (such as pneumonia, heart failure, and pleural effusion)
increased breast wall thickness
Lung overinflation in a specific area (emphysema can cause this)
airflow to a portion of the lungs is reduced.
Abnormal breath sounds can take many different forms. The four most frequent are wheezing, rales, stridor, and hives.
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a stage of the cell cycle during which the cell membrane pinched in and the cytoplasm divides into two daughter cells after mitosis or meiosis.
A cell divides into two daughter cells by physically dividing its cytoplasm through a process called cytokinesis. It happens simultaneously with the mitotic and meiosis processes of nuclear division that take place in mammalian cells.
What is cytokinesis?
The cell multiplies and creates a copy of its DNA during interphase. In the mitotic phase, the cell divides into two new cells by dividing its cytoplasm and DNA into two sets. When the cell membrane pinches the cell in half, the process is called cytokinesis. The cell membrane of an animal cell pinches, creating the furrow. One cell divides into two genetically identical new cells during the process of mitosis a kind of cell division split into two uclei.
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some of the stem cells in bone become osteoclasts during differentiation. researchers have shown that chemical signals called cytokines are released into the extracellular fluid by bone stem cells in response to environmental stimuli. the researchers also have shown that the cytokines induce these same bone stem cells to differentiate into osteoclasts. this example illustrates how a(n) signal functions in the human body
Chemical signals called cytokines to induce bone stem cells to differentiate into osteoclasts illustrating how an autocrine signal functions in the human body.
Cytokines are small peptides with cell signaling functions. Cytokines may be involved in autocrine, paracrine, and endocrine signaling. In this question, we analyze cytokines’ role by their signaling types.
Types of signaling can be different and depend on where they’re released
Endocrine: released into the bloodstream and then acts on the target cells,Paracrine: may or may not be released into the bloodstream and then acts on the nearby cells,Autocrine: Secreted by the cell that causes biological effects on the cell.Intracrine: Acts intracellularly on the synthesized cells.Know more about signaling molecules here: https://brainly.com/question/28182068
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in the nasal cavity, what is the name of the tiny hairs that move mucus to the pharynx?
The tiny hairs that move mucus to the pharynx is cilia.
What is pharynx?Pharynx is the neck's internal hollow tube that begins behind the nose and rises to the top of the trachea and oesophagus (the tube that goes to the stomach).
The pharynx, sometimes known as the throat, is a component of the digestive and respiratory systems. It transports food, liquid, and air from the mouth and nose downward.
What is the pharynx made of?The pharynx is made up of glands, lymphoid tissue, muscle, a mucous membrane, and an outermost adventitial covering.
What is the medical term for pharynx?The chamber or channel that joins the nose, mouth, and oesophagus is referred to as the pharynx (sometimes known as the throat). The tube connecting the throat and stomach is known as the oesophagus.
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genes that are found in different species and that evolved from the same gene in a common ancestor are called
Orthologs are genes that have maintained the same function over the duration of evolution in many species that diverged from a common ancestor gene through speciation.
The term "allele" is used to refer to a gene's alternate form or variants. For each autosomal gene, one allele is inherited from each parent, and we often group the alleles into categories. Usually, we refer to them as normal, wild-type, aberrant, or mutant alleles.
In a nutshell, orthologs are genes that are direct evolutionary equivalents of one another in many animals. Contrary to paralogs, which are genes within the same organism that evolved by gene duplication, orthologs were passed down through speciation [6, 3, 2].
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biological magnification is a natural process when a persistence material is taken-up by primary producers because:
Biological magnification is a natural process when a persistence material is taken-up by primary producers because greater potential for biological magnification.
A concentration that is higher than what equilibrium would suggest and higher than what would have occurred with exposure to only water occurs when an organism accumulates a chemical as a result of exposure to both food and water. Biomagnification is the term for this procedure.
The process by which a specific chemical accumulates in the bodies of animals at various trophic levels of a food chain is known as biomagnification. The buildup of the chemical DDT in zooplanktons is an illustration of biomagnification in action. These zooplankton are consumed by tiny fish.
The process by which some chemicals build up in living things to concentrations that are higher than those found in the inorganic, non-living world is known as "biomagnification" or "biological magnification."
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