The homozygous recessive genotype 'aa' occurs with a frequency of 0.16 in a population of pandas that is in hardy-weinberg equilibrium. Frequency of the dominant allele is 0.2 in the population.
An allele is a variation of the same sequence of nucleotides at the same site on a long DNA molecule, according to authoritative textbooks on genetics and evolution. "An allele is a different DNA sequence at a locus, and a locus (plural: loci) is the term for the chromosomal or genomic location of a gene or any other genetic element." Single nucleotide polymorphisms, or SNPs, are the most fundamental alleles (SNP). Although they can also involve base-pair insertions and deletions that number in the thousands. The term "allele" is typically used to refer to a small number of alleles contained inside genes. For instance, the ABO gene, which controls the ABO blood classification, has six common alleles (variants). These six alleles alone, according to population genetics, account for practically every living person's ABO gene phenotype. The majority of observed alleles have little to no impact on how well the gene product they code for functions. But occasionally distinct genes might cause distinct phenotypic features, like differing colouring.
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he paranasal sinuses: a. act as resonant chambers for sound. b. are lined with mucosa continuous with the nasal cavity. c. help lighten the weight of the skull bones. d. are lined with mucosa continuous with the nasal cavity, help lighten the weight of the skull bones, and acts as a resonant chamber for sound.
He paranasal sinuses (d) are lined with mucosa continuous with the nasal cavity, help lighten the weight of the skull bones, and acts as a resonant chamber for sound.
Paranasal sinuses are a group of four paired air-filled spaces that surround the nasal cavity. The maxillary sinuses are located under the eyes; the frontal sinuses are above the eyes; the ethmoidal sinuses are between the eyes and the sphenoidal sinuses are behind the eyes.
They are centered on the nasal cavity and have various functions, including lightening the weight of the head, humidifying and heating inhaled air, increasing the resonance of speech, and serving as a crumple zone to protect vital structures in the event of facial trauma.
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the evolutionary mechanism that allows for species to adapt to the environmental conditions found in their habitat is:_________
The evolutionary mechanism that allows for species to adapt to the environmental conditions found in their habitat is Natural Selection
What is Natural Selection?
An evolutionary mechanism is natural selection. Environment-adapted organisms have a higher chance of surviving and dispersing the genes that contributed to their success. Over time, this mechanism leads to the evolution and divergence of species.
One method to explain the millions of species that have existed on Earth is through natural selection.
Through reproduction, genetic mutations that are advantageous to an individual's survival are passed on. As a result, a new generation of organisms emerges that has a higher chance of surviving and reproducing.
For instance, giraffes have an edge over other species due to their long necks, which have allowed them to graze on leaves that others cannot reach. Because they had access to greater food, individuals with longer necks were able to breed and pass on the trait to the next generation. Shorter-necked individuals would have a lower chance of surviving to pass on their genes and would have less access to food.
Hence the answers is Natural selection
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fill in the blanks with the terms provided within the gray matter of the spinal cord, there are various functional groups of neuron cell bodies called
Within the gray matter of the spinal cord, there are various functional groups of neuron cell bodies called Nuclei .
Interneurons, motor neuron cell bodies, axons, and dendrites are found in the grey matter of the spinal cord's core. Horns are the "wings" or projections of the grey matter. The grey matter is shaped like a H when the grey horns and the grey commissure are combined.
The gray matter of the spinal cord has an H-shaped or butterfly-shaped shape and is made up of neuronal dendrites and cell bodies, unmyelinated axons, and neuroglia.
Gray tissue ,The dorsal horn, intermediate column, lateral horn, and ventral horn columns are the four primary divisions of the gray matter, which is primarily made up of the cell bodies of neurons and glia.
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which mass extinction event occurred just before the rapid increase in speciation among mammalian species?
The Cretaceous–Paleogene extinction event, also known as the K-T extinction, occurred approximately 66 million years ago and is believed to be the cause of the rapid increase in speciation among mammalian species.
The Impact of the Cretaceous-Paleogene Extinction Event on Mammalian SpeciationThe Cretaceous–Paleogene extinction event, also known as the K-T extinction, is a major extinction event that occurred 66 million years ago. It is believed to have been caused by an asteroid impact, and is one of the largest extinction events in Earth's history, as it caused the extinction of 75% of all species, including the non-avian dinosaurs. This event also had a profound effect on the evolution of mammals, leading to a rapid increase in speciation. This event is thought to have played a major role in shaping the Earth's current biodiversity.
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28 The pedigree below shows the inheritance pattern of a genetic disease caused by homozygous recessive lethal alleles. If the disease caused the death of individual II–2, then _[blank]_.
individual II-4 must be a carrier of the diseaseindividual II-4 must be a carrier of the disease , ,
individual II-1 must be a carrier of the diseaseindividual II-1 must be a carrier of the disease , ,
individual II-2 will pass it on to any offspring she hasindividual II-2 will pass it on to any offspring she has , ,
individuals I-1 and I-2 are carriers of the diseaseindividuals I-1 and I-2 are carriers of the disease , ,
Both I-1 nor I-2 are disease transmitters if the condition has resulted in the death of II-2.
What is a homozygous example?Both dominant (two alleles for brown eyes) and heterozygous individuals can have brown eyes (one for brown and one for blue). Contrary to the recessive blue eye gene, this one is dominant. To have blue eyes, you must possess two unique blue eye alleles.
Describe the homozygous trait.In terms of genetics, being homogeneous means having gotten the same alleles (versions) of a chromosomal marker from both bio mother. A person who carries two identical copies of either a DNA barcode is referred to as homozygous for such a marker.
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If the illness led to the demise of II-2, then neither I-1 nor I-2 are disease carriers.
What is an example of homozygosity?
Individuals with brown eyes might be heterozygous or dominant (have two alleles for them) (one for brown and one for blue). This gene, in contrast to the recessive blue eye gene, is dominant. You need two different blue eye alleles in order to have blue eyes.
Tell us about the homozygous characteristic.
Being homogenous in terms of genetics entails receiving the same alleles (versions) of a chromosomal marker from both biological mothers. A individual is said to be homozygous for a certain marker if they have two identical copies of either DNA barcode.
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how accurate are dna paternity tests? by comparing the dna of the baby and the dna of a man that is being tested, one maker of dna paternity tests claims that their test is 100% accurate if the man is not the father and 99.99% accurate if the man is the father.
When a claimed parent is not biologically linked to the kid, the result of a DNA paternity test, known as the "probability of parentage," is 0%. However, when the alleged parent is biologically related to the child, the likelihood of parentage is normally 99.99%.
The most accurate inclusion paternity testing techniques are thought to be 99.99 percent precise. Numerous DNA match spots, or loci, from the infant and the probable father are compared to determine paternity. While some paternity tests simply compare 13 loci, the most reliable paternity tests compare 16 loci. When verifying whether a guy is the biological father of another individual, a DNA paternity test is virtually 100% accurate. Blood tests or cheek swabs can be used for DNA analysis. If you require the findings for legal reasons, the test must be performed at a medical facility.
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a substance moves by facilitated diffusion into a cell. what is required for its transport? group of answer choices a pump atp only both atp and a protein channel either a protein channel or a carrier protein
Answer:
substance
Explanation:
One method of moving molecules is called "facilitated diffusion," and it makes use of proteins that are introduced into the plasma membrane, such as ion channels, carriers, and permeases, hence option C is correct.
What is facilitated diffusion?Proteins that act as channels or carriers both assist transfer. Numerous additional molecules, including ions, amino acids, and monosaccharides, cannot pass through the plasma membrane because they are polar or have a very big size.
The existence of transporter proteins is required for the cell to acquire or discard these chemicals. Because it makes use of the molecules' concentration gradient and uses no energy, diffusion is a form of passive transport.
Therefore, facilitated diffusion required either a protein channel or a carrier protein.
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if a student wanted to view the histology of nephron loops within renal pyramids, where in the kidney should they look?
The student should look at the Renal medulla.
What is the renal medulla?
The renal medulla, also known as the inner part of the kidney, consists of the medullary collecting ducts, loops of Henle, vasa recta and the interstitium.
The unique spatial arrangement of these components is essential as it has its function for the regulation of urine concentration and other specialized kidney functions.
If a student wanted to view the histology of nephron loops within renal pyramids, the student will find a tubule lined with simple cuboidal epithelium.
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How do proteins
determine the traits of an organism?
Answer:
by building the body of an organism
Explanation:
this is because protein foods cointain same of the. nutrians that a body of an organism need to build the body and make it healthly
the immune system is capable of mounting specific responses to particular microorganisms because ________.
The body contains an enormous diversity of lymphocytes
What is microorganisms ?
a living thing that can only be observed under a microscope. Protozoa, algae, fungus, and bacteria are all examples of microorganisms. Viruses are occasionally categorised as microbes even though they are not thought of as living things.
The immune system is capable of mounting specific responses to particular microorganisms because the body contains an enormous diversity of lymphocytes, each with the ability to respond to a different antigen.
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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 each mother and father are heterozygous (Ww), and homozygous there's a 50% hazard that any person in their offspring can have a gametes each parent can produce in regards to these two traits.
A Punnett rectangular may be used to decide all viable genotypic combos withinside the mother and father. A pedigree that depicts a dominantly inherited trait has some key distinctions.The Punnett rectangular underneath makes it clean that at every birth, there might be a 25% hazard of you having a everyday homozygous (AA) baby, a 50% hazard of a wholesome heterozygous (Aa) service baby such as you and your mate, and a 25% hazard of a homozygous recessive (aa) baby who possibly will finally die from this.
The opportunity that each heterozygous mother and father will make a contribution a recessive allele for any given trait is three out four or 75% of the time. An instance of a heterozygous genotype is one wherein one allele is dominant and the opposite is recessive.
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Reflection question: summarize the connection between the heart and the lungs. How are these organs working together to deliver oxygen to the body? be sure to use the terms pulmonary and systemic in your answer.
The heart and lungs work together to make sure the body has the O₂rich blood that it needs to function properly.
The right side of the heart receives deoxygenated blood from veins and pumps it to your lungs, where it picks up oxygen and gets rid of CO₂. It is called pulmonary circulation & left side of your heart receives oxygenated blood from your lungs and pumps it through your arteries to the rest of the body, this pumps blood to the aorta by systemic circulation.
A blood circulatory gadget is a machine of organs that consists of the coronary heart, blood vessels, and blood that's circulated throughout the whole body of a human or another vertebrate. It includes the cardiovascular machine, or vascular gadget, that includes the coronary heart and blood vessels.
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A farmer is trying to increase the diversity of corn kernel color and size in his crops. The trait for corn color is controlled by two alleles. Yellow corn (b ) is completely dominant over white corn (b ). The trait for corn kernel size is controlled by two alleles. Big kernel (k ) is completely dominant over small kernel (k ). Which combination of corn should he cross to get the highest variety and percent of genotypes in the next generation?.
The combination of corn that he should cross to get the highest variety and percent of genotypes in the next generation is Bb x Bb.
What is a genotype?The total complement of an organism's hereditary material is referred to as its genotype. The alleles or variants that an individual carries in a specific gene or genetic region are also referred to as their genotype.
From the scenario above, there are three distinct categories of genotypes: heterozygous recessive (pp), heterozygous dominant (PP), and homozygous recessive (pp).
We know that the dominant homozygous genotype and the dominant heterozygous genotype exhibit the same characteristics.
So in conclusion, if the farmer crosses Bb with Bb, the offspring will have BB, Bb, and bb genotypes, which will increase the diversity of corn kernel color and size in his crops.
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infrared spectroscopy is particularly good at detecting functional groups such as...
IR is particularly good at detecting functional groups that contain oxygen such as hydroxyl groups, -OH, carbonyls, C=O, and aliphatic C-O linkages.
Infrared (IR) spectroscopy is a technique for measuring absorption that is widely used in both qualitative and quantitative analyses. The electromagnetic radiation in the infrared region of the spectrum can change the vibrational and rotational states of covalent bonds in organic molecules.
Infrared spectroscopy takes advantage of the fact that molecules absorb specific frequencies that are unique to their structure. These absorptions have resonant frequencies, which means that the frequency of the absorbed radiation matches the frequency of the vibrating bond or group. Infrared spectroscopy (IR) is used to determine molecular structure, identify chemical species, quantify and qualitatively determine chemical species, and in a variety of other applications. This method is used to investigate matter in its solid, liquid, and gaseous states.
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The evolutionary mechanism that allows for species to adapt to the environmental conditions found in their habitat is:_______.
One method of evolution is natural selection. More successful organisms carry the genes that made them successful and are better adapted to their surroundings. Over time, species change and diverge as a result of
What are the eight different species?What similarities and differences did these ancient human species share? They included Homo soloensis, Homo placental mammal, Homo denisova, Homo rudolfensis, Homo heidelbergensis, Homo erectus, Homo proved, and Homo sapiens. Only Homo sapiens, or us, survived out of these eight different human species.
What is the number of species?There are about 8.7 million plant and animal species in the world, according to scientists. But only about 1.2 million species, majority of whom are insects, have been named and described thus far.
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Polypeptides in the er are usually larger than polypeptides synthesized from the same mrna that have not entered the er.
a. True
b. False
The statement 'polypeptides in the ER are usually larger than polypeptides synthesized from the same mRNA that have not entered the ER' is false.
The rough endoplasmic reticulum is the site where polypeptides enter so that protein formation can take place. Apart from protein formation, polypeptides are needed for various other metabolic functions by the ER.
Those polypeptides that are smaller in size can enter the endoplasmic reticulum because of the entering space and the small size of the endoplasmic reticulum. On the other hand, the polypeptides that are large, although being synthesized from the same mRNA, stay outside as they cannot enter the ER due to their large size.
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what structure allows the lymphatic system to absorb dietary fats from the small intestine?
The lacteal is the structure allows the lymphatic system to absorb dietary fats from the small intestine.
What is the function of a lacteal?A lymphatic narrow called a lacteal is liable for retaining dietary lipids in the small digestive system's villi.Bile emulsifies fatty oils, which are then processed by the lipase protein into a mix of unsaturated fats, di-, and monoglycerides From that point forward, they go from the gastrointestinal lumen into the enterocyte, where they go through re-esterification to make fatty oils. Chylomicrons are made by joining the fatty substance with phospholipids, cholesterol ester, and apolipoprotein B48.When inside the lacteals, these chylomicrons make chyle, a smooth material. The chyle is moved through the lacteals, which join to make greater lymphatic vessels, to the thoracic conduit, where it is delivered into the flow at the subclavian vein.Learn more about lacteal refer to :
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Consider the reaction.
2 upper N upper o upper c l double-headed arrow 2 upper N upper O (g) plus upper C l subscript 2 (g).
At equilibrium, the concentrations are as follows.
[NOCl] = 1.4 ´ 10–2 M
[NO] = 1.2 ´ 10–3 M
[Cl2] = 2.2 ´ 10–3 M
What is the value of Keq for the reaction expressed in scientific notation?
1.6 ´ 10–5
6.2 ´ 10–4
6.2 ´ 104
1.6 ´ 105
The value of Keq for the reaction expressed in scientific notation is
1.6 ´ 10–5
The first option is correct.
What are scientific notation?Scientific notation is described as a way of expressing numbers that are too large or too small to be conveniently written in decimal form.
Since equilibrium constant, Keq, is the ratio of product of concentration of products to the product of concentration of reactants each term raised to their stochiometric coefficients.
Where
[NOCl] = 1,4·10⁻² M.[NO] = 1,2·10⁻³ M.[Cl₂] = 2,2·10⁻³ M.K = [NO]² · [Cl₂] ÷ [NOCl]².K = (1,2·10⁻³ M)² · 2,2·10⁻³ M ÷ (1,4·10⁻² M)².Therefore K = 1,6·10⁻⁵.Learn more about scientic notation at: https://brainly.com/question/1767229
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Sort the items according to whether they may be found only in free virus particles, only in uninfected host cells, or in both viruses and host cells.
Virus Only: Envelope with glycoproteins, capsomere, capsid
Host cell only: ribosome
Both: protein, DNA, RNA
According to whether they may be found only in free virus particles, only in uninfected host cells, or in both viruses and host cells the items are classified into :
Viruses only- Capsid, Capsomere (core protein), Envelope with glycoproteins
Host cell only- Ribosome
Both- Protein, RNA, DNA
A virus is a submicroscopic important pathogen that replicates only within an organism's living cells. Viruses infect all forms of life, including animals and plants, as well as microorganisms such as bacteria and archaea.
Different viruses have distinct modes of pathogenesis, and glycoproteins play a direct role in host binding and entry. During host cell maturation, viruses have host glycoproteins on their exterior to eliminate host immunity.
Nucleic acid (the genome) and protein are critical elements of infectious viral particles. Furthermore, all enveloped viruses have lipid in their envelopes as well as carbohydrates in their glycoprotein peplomers (as well as that in the nucleic acid). A virus is composed of a core of genetic material, either DNA or RNA, accompanied by a protein-based protective coat called a capsid. The envelope is an extra pointy coat that surrounds the capsid. Viruses have the ability to attach to host cells and enter them.
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which of the following is a function of the seminal vesicles? a. allow for maturation of sperm b. temporary storage of sperm c. produce seminal fluid d. provide nitric oxide for erections e. site of spermatogenesis
The function of the seminal vesicles is the production of seminal fluid.
Some male mammals have a pair of convoluted tubular glands called seminal vesicles that are located behind the urine bladder. The seminal glands, or vesicular glands, are other names for the seminal vesicles.
The two seminal vesicles function as glands to create and store seminal fluid that will eventually turn into semen. As sperm must travel a distance inside the female body to fertilize, semen gives the sperm better mobility and nourishment.
The epididymis is a cordlike structure that helps in the maturation and storage of sperm. And, seminiferous tubules are the site at which spermatogenesis occurs.
Therefore, the correct option is option c.
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what is the function of the release factor (rf)?what is the function of the release factor (rf)?it releases the amino acid from its trna to allow the amino acid to form a peptide bond.it supplies a source of energy for termination of translation.it separates trna in the a site from the growing polypeptide.it releases the ribosome from the er to allow polypeptides into the cytosol.it binds to the stop codon in the a site in place of a trna.
In the A site, it binds to the stop codon in place of a tRNA. In order to add the amino acid to the expanding polypeptide, it frees the amino acid from its tRNA.
What use does the quizlet on release factor RF serve?What role does the release factor play in the translation process in eukaryotes? In order to let polypeptides enter the cytosol, it frees the ribosome from the ER. It offers a supply of energy for stopping translation.
What are release factor proteins used for?A release factor is a protein that permits the halting of translation by identifying the stop codon or termination codon in an mRNA sequence. They get their name from the ribosomes' release of fresh peptides.
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The autonomic nervous system may cause activation or inhibition, depending on the division that is active and the target that is affected.
a. True
b. False
True, Depending on the division that is activated and the target that is impacted, the autonomic nervous system may result in activation or inhibition.
What part of the autonomic nervous system is the source of inhibition?Acetylcholine is frequently utilized to suppress the parasympathetic nervous system. Norepinephrine frequently acts as a stimulant for the body through the sympathetic nervous system.
What takes place after the autonomic nervous system is engaged?Your sympathetic nervous system becomes active in these circumstances to help you escape danger by increasing your heart rate, delivering more blood to your body's oxygen-depleted regions, and other actions.
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In most eukaryotes, only about 1.5% of the genome codes for proteins. what types of sequences make up the rest of the genome?
Remarkably, human DNA codes for proteins only approximately 1 percent of DNA is made up of protein-coding genes; the alternative ninety-nine percent is noncoding. Noncoding DNA does now not provide commands for making proteins.
those types of sequences make up the rest of the genome genes and contain handiest about 1-2% of the 3 billion base pairs of DNA. this means that everywhere from ninety eight-99% of our whole genome needs to be doing something other than coding for proteins – scientists call this non-coding DNA
however genes as they have got traditionally been understood – as stretches of DNA that code for proteins – are only a small part of an organism's genome. In reality, they make up much less than 2% of human DNA
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the thermal energy of an object depends on its what
a. mass
b temperature
c. specific heat
d. two of the above
radiograph of an ap knee shows that the joint spaces are not equally open and the proximal fibular is completely superimposed over the tibia. which specific positioning error leads to this radiographic outcome?
The radiograph result is caused by a positioning mistake that causes lateral rotation of the lower leg specifically. An AP knee's radiograph reveals that the joint spaces are not all uniformly accessible and that the proximal fibula is entirely superimposed over the tibia.
With the proximal fibula foot extended, the image receptor in radiograph is flat against the plantar surface. The proximal fibula foot has to be obliquely positioned 30 to 40 degrees for the anterior-posterior medial radiograph view. First, second, and third metatarsal bones, whose heads (distal ends) are in touch with the ground, are impacted anteriorly by the weight transferred by the cuneiform bones. The proximal fibula calcaneus, cuboid, fourth, and fifth metatarsal bones support the body weight as it is radiograph transmitted anteriorly from the talus to the side.
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how is protein-coding information encoded in the genome? group of answer choices by base complementarity between promoter elements and dna binding proteins by non-covalent bonds between the two strands of dna in the double helix by a triplet code that is read by the trnas and ribosome by small rnas that regulated the abundance of mrna
The DNA sequence's character string is transformed into an appropriate numerical sequence in order to apply adequate signal processing techniques for the identification of protein-coding regions.
Does DNA contain the protein coding region?Each amino acid in a protein's amino acid chain is converted into a triplet of nucleotides, commonly known as a codon, by a coding DNA sequence.
What do genes that code for proteins encode?DNA sequences that are translated into mRNA and then translated into polypeptide chains are known as protein-coding sequences. One amino acid in the polypeptide chain is encoded every three nucleotides, or "codon," in a protein coding sequence.
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______ occurs when impulses from an organ are perceived as originating from the skin.
Referred pain occurs when impulses from an organ are perceived as originating from the skin.
Referred pain occurs when impulses from specific viscera are perceived as coming from the skin rather than the organ. Numerous cutaneous and visceral sensory neurons send nerve impulses up the spinal cord's ascending tracts.
The stimulus causes the sensory cell to generate an action potential, which is relayed to the central nervous system (CNS), where it is combined with other sensory information—or, in some cases, higher cognitive functions—to form a conscious perception of that stimulus. The skin contains numerous sensory receptors in the epidermis, dermis, and hypodermis that allow for touch discrimination such as pressure differences (light vs. deep). Temperature, pain, and itch are examples of external world qualities assessed by skin sensory receptors.
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when a natural disaster kills off a large proportion of the population, resulting in a severe reduction in the gene pool, it is called
Answer:
bottleneck effect
this is the right answer I suppose :)
Question: Skeletal muscles must work in pairs because they can only _____.
Pls help it’s due tomorrow
Answer: easy contract! Happy A my guy/girl
Explanation:
hannah plans to become an emt and work in on a team that helps patients in ambulances. what high school course might be beneficial for hannah to take now so that she can reach that goal? a. biology b. gymnastics c. web design d. astronomy