The introduction of nutria affects a pond ecosystem food web because the saltwater marshes are destroyed by Nutria's ravenous eating habits.
Nutria's ravenous appetite for food causes the destruction of saltwater marshes, which reduces the amount of food and shelter available to other species and promotes severe erosion.
By devouring the wetland grasses, Nutria devastates the area's food chain and environment. A few invasive species seriously hurt the economy. The amount of above- and below-ground plant matter that nutria consume daily can reach up to 25% of their body weight.
Nutria obliterates the banks of ditches, lakes, and other bodies of water in addition to harming vegetation and agriculture. What's most important, though, is the long-term harm that nutria may do to wetlands like marshes.
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why is easter island an example of irresponsible resources?
Answer:
Easter island is an example of irresponsible resources because they used deforestation for agriculture and Moai-making led to soil erosion that impacted farming.
Explanation:
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To reduce one molecule of o2 how many electrons passed through electron transport chain.
To reduce one molecule of O2 it takes 4 electrons.
Electron transfer is the last process of aerobic respiration that occurs in the inner membrane of mitochondria. In electron transport, the process of making ATP occurs which will later be used by cells to carry out activities in the body. The material for making ATP comes from NADH and FADH2 which are produced in glycolysis, oxidative decarboxylation, and the Krebs cycle. O2 acts as the final electron acceptor which will later form H2O which will be removed from the cell.
In electron transport, NADH and FADH are utilized in a series of oxidation-reduction reactions until finally used to reduce O2 to H2O. This redox reaction involving various protein complexes in the mitochondrial inner membrane is referred to as oxidative phosphorylation. The energy released in this redox process is converted into a high-energy molecule, namely ATP. To reduce one molecule of O2 it takes 4 electrons.
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match the polymerase chain reaction (pcr) step to its accurate description. - denaturation - annealing - extension - expansion - centrifugation 1. not a step of pcr 2. not a step of pcr 3. dna polymerase builds a complementary dna strand 4. primers bind to the dna strands once the temperature is lowered. 5. temperature is elevated and the two dna strands are separated.
does the cytosol play a role in eukaryote metabolism
Yes, cytosol play a role in eukaryote metabolism.
What is cytosol's function in eukaryotic cells?Cytosol is a major product within the eukaryotes where all the cells organelles resides. It is home to the cytoskeleton. The cytosol contains dissolved nutrients, aids in waste breakdown, and transports material within the cell.
In animals, cytosol plays a role in glycolysis, gluconeogenesis, pentose pathway as well as biosynthesis of protein. For plants, fatty acid synthesis occurs within their chloroplasts and they are not part of the cytoplasm.
The nucleus sometimes changes along side the cytoplasm as it moves and changes shape. Cytosol is also present in prokaryotes in a gel-like form.
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The trichonympha is a protozoan that breaks down the wood eaten by the __________ and both organisms absorb the nutrients.
The Trichonympha is a protozoan that breaks down the wood eaten by the termite and both organisms absorb the nutrients.
Symbiotic relationships are close associations formed by two species. They take many forms, including parasitism (in which one species benefits while the other suffers) and commensalism (where one species benefits and the other is neither harmed nor helped).
The protozoan Trichonympha lives in the termite's shelter and space. The Protozoa in the gut digest the wood on which the termite feeds. Without Trichonympha, the termite is unable to digest wood and dies. Trichonympha is a symbiotic flagellate of many termite species as well as the wood-feeding cockroach. Surprisingly, this unicellular organism has up to ten thousand flagella on its surface, which help it navigate the viscous environment of the host hindgut.
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a stretch of 100 base pairs of dna contains 15 complete rotations. this dna molecule is please choose the correct answer from the following choices, and then select the submit answer button. answer choices denatured. relaxed. negatively supercoiled. positively supercoiled.
Positively supercoiled molecules make up DNA.
How many base pairs of DNA are supercoiled around each nucleosome?In the nucleoprotein particles known as nucleosomes found in eukaryotic chromatin, the DNA double helix is repeatedly supercoiled. A typical nucleosome has a core composed of 145–147 base pairs (bp) of DNA that wraps around an octamer of histones in 1.7 left-handed superhelical twists (1–3).
What is the mechanism by which information is transferred from one DNA molecule to its daughter molecules?DNA replication is the mechanism by which a cell duplicates its chromosomal DNA after each cell division. After then, the duplicated DNA is separated into two "daughter" cells that get the same genetic material. Chromosome segregation is the term for this process.
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how does the concentration of prokaryotic cells at the surface of pelagic water compare with the concentrations at depths below 1000 m?
The concentration of prokaryotic cells at the surface of pelagic water compare with the concentrations at depths below 1000 m as option B: there is a decrease in concentration with increasing depth.
Prokaryotic cell counts often peak in sediments close to the surface and then rapidly decline as depth increases. However, the average cell concentration is still extremely significant at the typical marine sediment depth of 500 m. Prokaryotic cells are believed to have decreased by 97% due to the preferential removal of the most easily degradable organic matter components during burial. As a result, the remaining organic matter becomes more resistant and can only support a smaller prokaryotic population.
The Proteobacteria genus contains the majority of prokaryotic organisms in the ocean. These creatures have a variety of adaptations, such as compressible lungs and swim bladders that resemble lungs, to help them deal with the intense water pressure in their deep-water habitat.
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Complete question is:
How does the concentration of prokaryotic cells at the surface of pelagic water compare with the concentrations at depths below 1000 m?
A) There is a decrease in concentration from 1 m to 1000 m in depth, then a dramatic increase below 1000 m.
B) There is a decrease in concentration with increasing depth.
C) There is a steady increase in concentration with increasing depth.
D) There is an increase in concentration at depths below 1000 m.
High frequency has a ________ wavelength. low frequency has a ______ wavelength. question 1 options: short, long long, short medium, short long, medium
High frequency has a short wavelength. low frequency has a long wavelength.
Frequency is defined as the number of waves that pass a specific point in unit time. The SI unit used in case of frequency is Hertz (Hz). If the frequency is 1 Hz, it depicts that only 1 wave passed the point at a specific amount of time.
Wavelength is the distance between two consecutive crests or troughs of a wave. The representation of wavelength is done by the symbol λ (lambda). The frequency and wavelength have an inverse relation. This can be observed by the formula
ν (frequency) = c (speed of light) / λ (wavelength).
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What is the term used to describe a metabolic pathway that breaks apart glucose anaerobically to produce a small amount of ATP and pyruvate?1) glycolysis2) cellular respiration3) fermentation4) Citric Acid Cycle5) Oxidative Phosphorylation
Solution:
Remember that, fermentation is an incomplete oxidation process, which does not require oxygen, and whose final product is an organic compound and ATP. So that, we can conclude that the correct answer is:
FERMENTATION
what does a mutagen cause? view available hint(s)for part a what does a mutagen cause? a reduction in the number of trna molecules available for protein synthesis a change in the sequence of dna decreased permeability of the nuclear envelope problems with mitosis decreased enzyme activity throughout the cell
Mutagen causes a change in DNA sequence it changes the nucleotide base pairs, it may be radioactive elements acts as a mutagen.
What is mutagen?A modification to the DNA's sequence, any factor that results in a mutation (a change in the DNA of a cell).
Mutagens may injure cells and cause some illnesses, including cancer, by altering DNA nucleotide base pairs.
Therefore, radioactive elements, x-rays, UV rays, and certain compounds are examples of mutagens, and changes in DNA sequence.
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A person has the genotype GG. Where did they get that genotype from?
The genotype GG dominant for both the alleles is inherited from both the parents, i.e., mother and father.
Genotype is defined as the composition of genes of an organism. The genotype determines whether a trait a person possesses is dominant or recessive. It also clarifies if the trait is homozygous dominant or heterozygous.
Alleles are the alternative forms of a gene. These are the result of mutations. Usually there are two allelic forms of a gene but there can be more than two alleles as well. For example, in the question the genotype GG has two similar form of alleles which is G individually derived from mother as well as father.
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Without knowing any additional information, a pair of species within the same ____________ most likely shares the most recent common ancestor.
Without knowing any additional information, a pair of species within the same monophyletic group most likely shares the most recent common ancestor.
A clade is a branch of a phylogeny that includes an ancestral lineage and all of its descendants. Because this group of organisms has the property of monophyly, it is also known as a monophyletic group. The evolutionary history of a group of related organisms is known as phylogeny. It is represented by a phylogenetic tree, which demonstrates how species are related to one another via common ancestors. A clade is a group of organisms composed of an ancestor and all of its descendants.
A "clade" would consist of the common ancestor of apes and all of its descendant species.
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Animals called sponges reproduce by budding. The sponge in this photo formed
buds on the outside of its body.
Which statement describes the process of budding?
Answer: 3. New individuals develop from pieces that break off an individual. (Fragmentation)
Explanation:
Sponges reproduce sexually as well as asexually. Fragmentation, in which a piece of the sponge breaks off, settles on a new substrate, and develops into a new individual, or budding is the two most common methods of asexual reproduction (a genetically identical outgrowth grows from the parent and eventually detaches or remains attached to form a colony). Only freshwater sponges engage in an unusual form of asexual reproduction that results in the development of gemmules. Gemmules are structures made by adult sponges that are resistant to the environment (e.g., in the freshwater sponge Spongilla). In gemmules, a pneumatic cellular layer that may be fortified with spicules surrounds an inner layer of archeocytes (amoebocytes).
You have 23 pairs of chromosomes in your body cells. Why do your chromosomes occur in pairs? Where does each chromosome in the pair come from?
Answer:
You have your chromosomes in pairs because you get 23 from each parent.
Your chromosome pairs come from your parents, 23 from your mom (egg), 23 from your dad (sperm). Which totals to 46 chromosomes in your body.
You have prepared a karyotype of an individual and have found that one of the chromatids of chromosome 4 is shorter than its homologous. What can you conclude has happened to this chromosome?
The conclusion that can be revealed from this consequence of the shortening of one of the chromatids is that sister chromatids do not split equally during the anaphase of mitosis.
What is a Karyotype?A karyotype may be defined as the complete set of chromosomes of any individual. It represents all sorts of numbers, sizes, and any abnormalities of the chromosomes in an organism.
According to the context of this question, in a karyotype of an individual, you have found that one of the chromatids of chromosome 4 is shorter than its homologous. It is due to the process when sister chromatids do not split equally during the anaphase of mitosis.
As a result of this, one daughter cell would have more chromosomes than normal and one daughter cell along with size variabilities in the chromatids of the chromosomes.
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Which of the following is an example of a glacial formation?A. methane degradationB. photosynthesisC. photolysisD. Weathering of rocks
The answer is D. Weathering of rocks.
The other options have nothing to do with glacial formation, rocks can be weathered as a result of the preassure of ice over them, eroding the underlying rock by abrasion and plucking.
Match the definition provided with the correct type of membrane transport.
Please help me
The definitions are matched according:
Water diffuses across a partially permeable membrane from a high water concentration area to a low water concentration area until equilibrium is established. Molecules move over a partially permeable membrane from a high concentration area to a low concentration area until equilibrium is attained.
Osmosis occurs when molecules flow via a Partially permeable membrane with the help of a transport protein from a high concentration area to a low concentration area until equilibrium is attained.
Facilitated Diffusion: Molecules that pass across a partially permeable membrane with the help of a transport protein and require energy to move from a low-concentration area to a high-concentration area without achieving equilibrium.
Active Transport: Molecules that flow over a partially permeable membrane with the help of a transport protein and require energy from a low-concentration area to a high-concentration area without achieving equilibrium.
What is the use of osmosis?
By balancing the levels of water and intracellular fluids, osmosis assists in the stability of the organism's internal environment. Additionally, nutrients and minerals enter the cell through osmosis, which is necessary for cell survival.
It is used to preserve the freshness of fruits and meat. Salt preserves meat, fish, and vegetables, but sugar preserves fruits. Bacteria that infect them attack them swiftly.
Preservatives like sugar and salt cause bacteria to lose water and halt their metabolism. The germs will perish as a result.
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3. Where do the producers get their energy from?
Answer: The Sun.
Explanation:
Producers make their own energy from sunlight.
Answer:
their energy comes from the sun.
Insulin and enzymes are examples of which macromolecule?
Carbohydrates
Lipids
Proteins
Nucleic acids
Answer:
Insulin is protein hormones while enzymes are protein macromolecule
Explanation:
Answer:
proteins
Explanation: i got it on the test correctly
what process are you performing to get the newly ligated promoter and plasmids from the gga reaction into e. coli cells? explain.
We used transformation to obtain the freshly ligated promoter and plasmids.
What causes the DNA in E. coli cells to change?One of the fundamental methods in molecular biology is the heat shock method, which transforms plasmid DNA into E. coli. A foreign plasmid or ligation product is inserted into bacteria in this method.
What procedures are employed in E. coli transformation?Bacterial cells can be transformed primarily by heat shock or electroporation. The bacterial cells in both situations must be made competent or permeable to the plasmids you want the cell to spread.
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Write a 250 word response on the below.
• Scientific research can cause pain to individuals if it is good for the greater good.
Force-feeding the test material can cause a great deal of distress. Gavage is the method commonly utilised to provide the test dose straight into the animal's stomach.
What makes scientific research so crucial?We needs scientific studies to guide us all through our ever new reality Now without, we would be compelled to rely on the judgement of others, our instincts, and destiny. Since scientific knowledge is based on unbiased, verifiable facts, systematic scientific study gives us an objective understanding.
What are the two categories of scientific study?The studies can be broadly divided into two categories: Research that is basic or basic or research that is applied. Normal inquiry and revolutionary research are the two primary types of basic and applied research.
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Explain why you know that diuron caused the coral to bleach.
I know that Diuron caused the coral to bleach because the coral expelled the algae that are living in their tissues.
What is Diuron?This is referred to as a herbicide which is made up of substituted urea and it is used for the control of crop and noncrop areas. Its mechanism of function is that it is able to inhibit photosynthesis which prevents plant growth.
In a situation where corals bleach, they turn white which is as a result of them expelling algae in their tissues due to different types of stressful conditions. An exposure to chemicals or a high pH may result in this condition also.
In this scenario we were told that the coral bleached however diuron inhibits photosynthesis which could have caused the expulsion of the algae which is why it was chosen.
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What causes the differentiation of blood stem cells into new cells with different shapes and functions?.
Transcription factors are the main method by which genes are activated or deactivated.
What controls how stem cells differentiate?Stem cells often have the ability to develop into a wide variety of cell types. It appears that transcription factors, which are proteins that control which genes are transcribed in a cell, are crucial in defining the course that specific stem cells take when they differentiate.
A cell only has to alter the genes (and consequently the proteins they will produce) that will be expressed, not the ones that will remain silent, in order for it to differentiate into its specific form and function. Transcription factors are the main method by which genes are activated or deactivated.
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Please help I don’t know what I’m doing: If 3000 J of energy is released from 1kg of air, what would the final temperature be if it started out at 25°C?
The final temperature started out at 25°C would be 27.9°C, if 3000 J of energy is released from 1kg of air.
Equation
The ratio of a material's capacity to absorb heat to the change in temperature is known as heat capacity. In terms of the actual amount of material being taken into account, which is most frequently a mole, it is typically stated as calories per degree (the molecular weight in grams). Specific heat capacity is the heat capacity expressed in calories per gram.
The change in heat of the air can be given by
q = (Cp)mΔT
where,
Specific heat of 1.005 J/gC, and m is the mass of air in the calorimeter in grams.
Delta T is the temperature change.
∆T= T(final)-T(initial)
q = 3000J
T(final)=x
T(initial)= 25
m=1kg = 1000g
q= (Cp)mΔT
3000 = (1.005)*1000*(x-25)
x = 27.9°C
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What is the primary goal of cellular respiration in eukaryotes?
Answer:
Cellular respiration
Explanation:
Cellular respiration in eukaryotes occurs primarily in the mitochondria. Eukaryotic cells depend on cellular respiration to survive. During glycolysis, the cell breaks down glucose in the cytoplasm with or without oxygen present.
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Thank you.
It’ll make my day
Answer:
Blood sugar regulation is an example of negative feedback, where the body works to increase the stimulus to maintain homeostasis.
Explanation:
Negative feedback loops are when someone goes out of homeostasis and the body must work harder to restore the lost balance to maintain homeostasis. Blood sugar needs to be regulated so the pancreas must release glucagon or insulin to maintain the proper levels.
Nucleus,cell membrane, cell wall, mitochondria, cytoplasm, nucleolus,vacuoles, lysosomes,ribosomes, nuclear membrane,centriole,chromatin,
Golgi complex , endoplasmic reticulum,chloroplast
Answer:
CytoplasmNucleusChloroplastRibosomesCell MembraneMitochondrion Nuclear MembraneLysosomesCell WallVacoulesCentrioleendoplasmic reticulumRNAChromosomeschromatinExplanation:
1) Which of the following is a piece of biochemical evidence for all for all species that supports the theory of evolution from a common ancestor?a) aerobic respirationb) storage of DNA in the nucleic) production of the same types of proteinsd) use of the same genetic code
One biochemical evidence that supports the theory of evolution that says that we all come from a common ancestor is the fact that all organisms use the same genetic code for the translation of proteins, for example, the codon AUG codes for the amino acid methionine in all organisms.
This means D would be the right answer.
AUU GAU ACU GCA GC
b) What are the first four amino acids coded by this sequence? Hint: Look up the amino acids on the codon table. (1 point)
Answer: Isoleucine - Asparagine - Threonine - Alanine
Explanation:
Use the table to find what amino acid corresponds with the three letter codons. These are the first four.
What would meiosis look like if DNA replication did not occur before meiosis 1
Answer:
Because meiosis creates cells that are destined to become gametes (or reproductive cells), this reduction in chromosome number is critical — without it, the union of two gametes during fertilization would result in offspring with twice the normal number of chromosomes!
Explanation: