If we measured the force generated by the muscle it would be more than 5 pounds.
Deltoid muscles play an important part in helping you move your arm in different directions. They also stabilize your shoulder joint and cover it from injuries analogous to dislocations. People who perform a lot of repeated above movements, analogous as insensibility, jugs, or mechanics, are at the trouble of injuring their deltoid muscles. utmost deltoid muscle injuries heal with nonsurgical treatments. The muscle supports the weight of the arm plus a five-pound weight.
It's present in your shoulder, which is the ball-and-socket joint that connects your arm to the box of your body. Like utmost other muscles in your body, the deltoids are cadaverous muscles. Tendons attach them to bones. Cadaverous muscles are voluntary muscles, meaning you choose to move them.
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atp production in halophilic archaea that contain bacteriorhodopsin differs from atp production in cyanobacteria in that only cyanobacteria choose one: a. are found in water. b. use light to excite electrons. c. oxidize water. d. create a proton motive for
Option c ATP (Adenosine triphosphate) production in halophilic archaea that contain bacteriorhodopsin differs from ATP production in cyanobacteria in that only cyanobacteria oxidize water.
A relatively recent functional water product called oxidize water has oxygen added to it during the canning or bottling process. It is asserted that the additional oxygen has health advantages, such as facilitating the body's detoxification process and enhancing the metabolism of alcohol. The liver, blood, and immune system appear to be unaffected by prolonged oxygenated water ingestion. In addition, it causes a brief, modest rise in oxygen radicals in the blood. Water that has been oxygenated can be useful if you want to improve the health of your skin naturally. That's because it can aid in oxygenating your skin cells, which can aid in enhancing the tone and texture of your skin. Your skin gets the oxygen it needs when it is oxygenated, so your skin cells can
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after traveling through the right axillary vein, where does blood travel immediately to next? a. median cubital vein b. right brachial vein c. right brachiocephalic vein d. right subclavian vein
After traveling through the right axillary vein, the blood travel immediately to Right subclavian vein next.
Right common carotid and right subclavian arteries are both divisions of the brachiocephalic artery. The left subclavian and common carotid arteries have their own distinct origins from the aortic arch, but otherwise have the same pattern and distribution as their right-side counterparts.
What are subclavian veins?
Deep vein that returns oxygen-poor blood from your upper body to your heart is called the subclavian vein. On each side of your body, you have one. Blood from your right upper torso travels through your right subclavian vein. Blood from your left upper torso travels through your left subclavian vein.
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which of the following statements about the cytoskeleton is true? although microtubules are common within a cell, actin filaments are rarely found outside of the nucleus. the cytoskeleton of eukaryotes is a static structure most resembling scaffolding used at construction sites. the cytoskeleton is produced by transport vesicles of the endomembrane system. movement of cilia and flagella is the result of motor proteins causing microtubules to move relative to each other. chemicals that block the assembly of the cytoskeleton would have little effect on a cell's response to external stimuli.
The answer is yes this is true, the dynamic aspect of cytoskeletal function is made possible by the assembly and disassembly of a large number of complex proteins into larger aggregates. There are three types of the cytoskeleton: actin filaments (microfilament), microtubules, and intermediate filaments.
What does cytoskeleton mean?All cells, including those of bacteria and archaea, have a complex, dynamic network of interconnecting protein filaments called the cytoskeleton. It stretches from the cell nucleus to the cell membrane in eukaryotes and is made up of identical proteins in different animals.The cytoplasmic protein filament and microtubule network that regulates cell shape, upholds intracellular structure, and participates in cell motility. Examples of Other Words from Cytoskeleton More information on the cytoskeleton.Contractile bundles (found in muscle cells), the MTOC, the nuclear lamina, and the intermediate filament-based 'cage' that forms around the nucleus from flexible cables at the cell surface to the core of the cell are a few examples of higher-order cytoskeleton structures.Hence, the above statement is true.
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What is Chargaff’s Rule? How can we use that to compare species' DNA?
Answer:
equivalence rule
Explanation:
The protective mechanism that involves an external stimulus leading to an immediate muscular contraction is called?.
Answer:
a reflex arc.
Explanation:
Reflex arc is the term used to describe the body's immediate and involuntary response to arousal of a sensory nerve. For this to happen, the external stimulus is applied to the body and before reaching the brain, this stimulus receives a response in the body's marrow, causing an immediate involuntary muscle contraction without the will or awareness of the body.
a common inhabitant of human intestines is the bacterium escherichia coli. a cell of this bacterium in a nutrient-broth medium divides into two cells every 20 minutes. the initial population of a culture is 52 cells. find the relative growth rate. (assume t is measured in hours.)
Relative growth rate of the bacterium will be k=ln8
E. coli: Escherichia coli, more commonly referred to as just E. coli, is well-known for causing severe human illness, but there are only a few strains. The majority of strains are harmless and naturally occur in the human intestine.
From the equation: [tex]p(t) = p_{o} e^{kt}[/tex]
[tex]\\p_{o} = 52, t= 20 min = \frac{20}{60} hr = \frac{1}{3} hr.[/tex]
To find Relative growth:
[tex]\frac{p(t)}{p_{o} } = 2[/tex] at [tex]t= \frac{1}{3} hr\\[/tex] (as cell divide into 2 in first 20 min)
[tex]2= e^{\frac{k}{3} } , ln2= \frac{k}{3}[/tex]
therefore, k= ln8
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Which are sources of adult stem cells? Select three options.
Answer:
where’s the picture?
Explanation:
Answer:
It's 1, 3, 4
I got it right on the quiz
The results of one experiment carried out by a research team would be considered valid if
A) All the members of the research team came to the same conclusion
B) The experiment had more than 1 variable
C) The experiment was repeated and same results were obtained each time
D) The experiment had no control set up
Answer:
c
Explanation: hope it helped
Within the Phylum Platyhelminthes, what does it mean to be bilateral?A. to have symmetry on your body from side to sideB. to have 2 of each appendageC. to have multiple layers of body tissuesD. to have 2 step in your life cycle
Platyhelminthes present a body that can be divided into two, drawing a line from the head to the tail right in the middle of it, as the following image shows:
what is the product of meosis 1?
Answer:
meosis 1 segregates homologous chromosomes which are joined as tetrads (2n, 4c ). producing two haploid cells ( in chromosomes ) which each contained chromatid pairs because the ployidy is reduced from diploid to haploid meosis 1 is referred to as a reductionial division
When considering different hypotheses, usually the
_______ one which can account for the
________ is the correct one.
Answer:
simplest, information
substrates are held in the active site of an enzyme by:the matching shape of the allosteric site.the lowering of the activation energy.hydrogen and ionic bonds.the action of coenzymes and cofactors.
Substrates are held in the active site of an enzyme by hydrogen and ionic bonds.
What is ionic and hydrogen bonds?Ionic bonds are attracted by electrostatic forces, whereas hydrogen bonds are intermolecular forces. Ionic bonding occurs between permanent anions and cations, whereas hydrogen bonds occur between partial positive and partial negative charges. This is the main distinction between the two types of bonds.
In that they are created by the attraction of atoms with opposing polarity, hydrogen bonds are comparable to ionic bonds in this regard. They lack the strength of full or complete charges, however, as they are formed by the interplay of partial charges.
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in drosophila, a key step in initiating the dorsal-ventral body axis involves follicle cells building a signal into the eggshell. which follicle cells create a functional signaling molecule?
The follicle cells create a functional signaling molecule is ventral follicle cells.
What is a dorsal-ventral axis?The dorsal/ventral axis is defined as a line that is perpendicular to the anterior/posterior and left/right axes. An organism's dorsal end is located on its top or back. The ventral end of an organism is defined by its bottom or front side.
In Drosophila embryos, the formation of the dorsal-ventral pattern is dependent on a signaling mechanism in which a putative extracellular ligand released into the area around the embryo known as the perivitelline space binds to the Toll receptor.
The focus protein in the dorsoventral polarity development of the developing fly is called dorsal (DL). It is a transcription factor that regulates the expression of zygotic genes necessary for early development along the dorsoventral axis.
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g you cross the unknown with a wrinkled pea which has a homozygous recessive (rr) genotype. all progeny are spherical. based on these results what is the unknown genotype?
The genetic components that make up an organism's genotype. The term "genotype" also refers to the set of alleles or genetic variations that a person possesses within a certain gene or genetic region.
What is homozygous recessive (RR)?A heterozygous genotype means that an organism has both a dominant and a recessive allele.
This genotype is referred to in our scenario as Bb.
Last but not least, a genotype in which there are two recessive alleles in an organism is known as homozygous recessive.
Heterozygosity, as opposed to homozygosity, has two distinct alleles.
Our parents appeared in various guises to you.
When two alleles are heterozygous, the dominant allele wins out over the recessive one.
Therefore, the dominant characteristic will emerge.
We are carriers even though we won't exhibit the recessive trait.
the parts of an organism's genome that make up its genotype.
The set of alleles or genetic variations that a person possesses inside a certain gene or genetic area is also referred to as their genotype.
Therefore, the genetic components that make up an organism's genotype. The term "genotype" also refers to the set of alleles or genetic variations that a person possesses within a certain gene or genetic region.
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which of the following statements is true about epigenetics
which factor contributes to both chemical and mechanical weathering
Answer: The factor which contributes to both chemical and mechanical weathering is water.
Explanation:
What is chemical weathering?
Chemical weathering is the erosion or disintegration of rocks, of soil materials, by chemical reactions.
The major factor contributing to chemical weathering is water and minerals dissolved in it while mechanical weathering such as abrasion, freezing etc, is also caused by water.
Thus, we can conclude that, the factor which contributes to both chemical and mechanical weathering is water.
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Please give a 5 star or a thanks if this helped!
Can someone help me understand this question
Answer:
Explanation: The names of the compounds given are really large and complex molecules. They are asking for the building blocks of these molecules which is what the complex molecules are made of. One is given (glucose). They are also asking for the function of the building blocks, which means what is the building block of each molecule needed for in a human body. And the examples of those building blocks and functions.
wo friends are discussing physical and chemical changes. isabela says that when you eat, it is a physical change because when you chew, the food is only changed into smaller pieces. mirabel says that when you eat, it is a chemical change because your body digests the food as the chemicals in your body break down the food into energy. who is right?
When one eats, the food is not just changed into smaller pieces, digestion of the food starts right from the mouth. Thus, Mirabel is right.
Food digestionThe digestion of most food types starts from the mouth once they get mixed with the saliva in the mouth. The digestion process continues in the stomach and is eventually finalized.
The digestion of foods is a chemical reaction. That is, foods are not just churned into pieces, they undergo chemical changes through the activities of enzymes.
In physical changes, substances only change physically and not chemically. Thus, they can be retrieved in most cases. This is unlike what is obtainable with chemical changes. Both the physical and chemical properties of food become irreversibly changed with the digestive activities of enzymes.
Thus, Mirabel is right in her assertion while Isabela is wrong.
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what phenotypic ratios would be expected for the following genetic crosses? monohybrid cross, alleles exhibit complete dominance [ select ] monohybrid cross, alleles exhibit incomplete dominance [ select ] dihybrid cross, alleles exhibit complete dominance and epistasis [ select ]
Phenotypic ratio of a monohybrid cross, Complete dominance- 3:1, monohybrid cross, incomplete dominance- 1:2:1, dihybrid cross, complete dominance&epistasis- 9:3:4.
A monohybrid cross is a genetic mix between two people with homozygous genotypes, or genotypes with completely dominant or completely recessive alleles, that produce opposite phenotypes for a particular genetic trait. This is called a homozygous cross.
A mating experiment between two organisms that are identically hybrid for two traits is referred to as a dihybrid cross. The term "hybrid" refers to an organism that is heterozygous, meaning that it possesses two distinct alleles at a specific genetic position or locus.
Only one allele from the genotype is present in the phenotype in complete dominance. In codominance, the phenotype reflects both genotype alleles. In incomplete dominance, the phenotype consists of a mix of the genotype's alleles.
When one gene's expression is altered (e.g., masked, inhibited, or suppressed) by the expression of one or more other genes, this condition is known as epistasis.
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what can distinguish primates that are adapted for eating large amounts of plants and leaves? group of answer choices their sagittal crests their incisor-like canines their tooth combs their lack of a diastema
Their sagittal crests distinguish primates that are adapted for eating large amounts of plants and leaves.
Many mammalian and reptilian skulls, among others, have a ridge of bone running longitudinally along the midline of the top of the skull (at the sagittal suture). There are incredibly powerful jaw muscles because of the existence of this bone ridge.
What kinds of animals have sagittal crests?
The top of the skull in carnivores and omnivores has a ridge known as the sagittal crest. The sagittal crest, which is where the powerful muscle that regulates the lower jaw's crushing action attaches, is highly noticeable in opossums and fishers but less so in coyotes, raccoons, and otters.
Therefore sagittal crests distinguish primates that are adapted for eating large amounts of plants and leaves
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______ is a specialized type of cell division that produces cells that are genetically different from each other.
Meiosis is a specialized type of cell division that produces cells that are genetically different from each other.
Cell division is the process through which all cells are created from other cells. Meiosis is a specific type of cell division that generates reproductive cells like sperm and egg cells as well as plant and fungus spores. A "parent" cell generally divides into two or more "daughter" cells during this process. The parent cell can transmit its genetic material in this manner from generation to generation.
Meiosis is a specific type of cell division that takes place in sexually reproducing organisms. It generates reproductive cells like sperm, egg, and spores in plants and fungi, as was previously indicated. In humans, germ cells go through a process called meiosis to develop into sperm or eggs.
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In a photosystem, clusters of chlorophyll a, chlorophyll b, and carotenoid pigments function most like?.
In a photosystem, clusters of chlorophyll a, chlorophyll b, and carotenoid pigments function most like an antenna. There are two photosystems in plants. Thus, the correct option is B.
What is a Photosystem?
A photosystem is a protein complex which is a group of two or more proteins, these include chlorophyll a, chlorophyll b, carotenoid, and other accessory pigments which are essential for the photochemistry of photosynthesis. It carries out the absorption of light photons and the transfer of these electrons in light reaction and dark reactions of photosynthesis. There are two photosystems in plants which are Photosystem I and Photosystem II which makes made up of antenna.
Therefore, the correct option is B.
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Your question is incomplete, most probably the complete question is:
In a photosystem, clusters of chlorophyll a, chlorophyll b, and carotenoid pigments function most like
A) an electrical generator.
B) an antenna.
C) a propeller on a motorboat.
D) a windmill.
E) a spring.
which statement about linkage of genes is false? genes on the same chromosome that are far apart have a higher recombination frequency than those that are close together. crossing over results in recombinant phenotypes. crossing over between two linked genes can alter phenotypes of progeny. genes on the same chromosome are said to be linked. genes on the same chromosome assort independently.
The genes are most likely near to one another .The likelihood that two genes will be inherited together increases as they get more closely spaced.
Two genes are likely near to one another if they are on the same chromosome and infrequently assort independently. The alleles of two distinct genes are sorted into gametes independently of one another, according to Mendel's law of independent assortment. An allele for one gene does not affect the allele for another gene that a gamete acquires.
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How do the different ocean zones help each other?
Answer:
Explanation:
There are three main ocean zones based on distance from shore. They are the intertidal zone, neritic zone, and oceanic zone. Distance from shore influences how many nutrients are in the water. Why? Most nutrients are washed into ocean water from land. Therefore, water closer to shore tends to have more nutrients. Living things need nutrients. So distance from shore also influences how many organisms live in the water. In addition to the amount of salts, other conditions in ocean water vary from place to place. One is the amount of nutrients in the water. Another is the amount of sunlight that reaches the water. These conditions depend mainly on two factors: distance from shore and depth of water. Oceans are divided into zones (Figure below) based on these two factors. The ocean floor makes up another zone.
There exist three main ocean zones as said by distance from shore . they're the intertidal zone,neritic zone,and oceanic zone . Distance from shore influences how many nutrients are in the water . Why ? Most nutrients are washed into ocean water from land . because,water closer to shore tends to have more nutrients . Living things need nutrients . So distance from shore also influences how many organisms live in the water . apart from the number of salts,other conditions in ocean water vary from place to place . One is the number of nutrients in the water . a one more is the number of sunlight that arrives the water . These conditions depend largely on two factors : distance from shore and depth of water . Oceans are divided into zones (Figure below) as said by these two factors . The ocean floor makes up an additional zone .
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Looking at the pedigree chart, individual #8 must be heterozygous for the trait in question.
Human pedigreeThe trait shown by the pedigree is a recessive trait. Thus, individuals that phenotypically exhibit the trait will have two recessive alleles.
This means that individuals #1 and #10 in the pedigree are homzygous recessive for the trait.
Let us assume that the recessive trait is a while the alternate version is A. If it has been established that individual #1 is homzygous recessive, the genotype will be aa.
we are not sure if individual #2 is homzygous dominant or heterozygous.
If #2 is heterozygous, the cross between #1 and #2 will be:
aa x Aa
Aa aa Aa aa
If #2 is homzygous dominant, the cross would be:
aa x AA
Aa Aa Aa Aa
Whatever the genotype of #2, the offspring are either heterozygous or exhibit the trait. Since none of the offspring is shaded in the pedigree, it means they can only be heterozygous.
In other words, individual #8 can only be heterozygous for the trait in the pedigree.
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in order for molecule x to cross the plasma membrane of a cell, it must first bind to an integral membrane protein. the binding of molecule x to the integral membrane protein immediately causes a conformational change to the integral membrane protein, which exposes molecule x to the other side of the membrane where it is then released. what is this an example of? neutral transport active transport passive transport
This is an example of passive transport ( Facilitated Diffusion).
A type of membrane transport called passive transport moves materials across cell membranes without the use of energy. Active transport uses cellular energy to transfer materials across cell membranes, whereas passive transport uses the second law of thermodynamics.
A form of passive transport is facilitated transport. In contrast to simple diffusion, when substances flow across a membrane without the aid of membrane proteins, substances diffuse over the plasma membrane in aided transport, also known as facilitated diffusion.
Permeases are membrane transport proteins that bind to many substrates, including galactose, fructose, and glucose, for example. This binding causes the transmembrane permease domains to alter conformation, enabling passive transport of the substrate across the membrane.
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albinism (the lack of melanin pigmentation) is an autosomal recessive trait. a man and woman both show normal pigmentation but both have one parent who has albinism. they have one daughter who is phenotypically normal. what is the probability that their next child would be an albino girl?
The probability that the next child will show albinism is 0.25.
Albinism is a kind of genetic disorder that occurs in a person. This condition is caused by the lack of a pigment called melanin in a person. The lack of this certain pigment in a person's skin, hair, and eyes leads to lighter color or no color in one's skin, hair, or eyes.
In the given situation, the parents of the child are heterozygous parents.
Hence, since they both have one parent that has albinism, the probability that they will show albinism is 0.25. Since it is a recessive trait in both of them, they might or might not show it. In this case, they didn't, but the marker which carries the trait is still present in both of them. Hence, when they pass it on to their second child, the probability that the second child will show albinism is also 0.25 or 25%
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a microscope has a x5 eyepiece lens.
describe how to use this microscope to observe a prepared slide of root hair cells at a magnification of x50
[4 marks]
Level 2: To create an accurate account, scientifically significant facts, events, or processes are recognized and provided in detail.
Level 1: Facts, events, or processes are named and briefly described, but it is unclear how relevant they are.
Place slide on stage. Use lowest power / 4 objective lens (initially). Adjust mirror or turn on light so light passes through slide. Move stage as close to lens as possible. Slide must not touch lens. Turn focusing the knob so that slide moves away from lens. Turn focusing knob until image comes into focus. Use fine focus to get clear image. Change objective lens to 10.10 objective lenses and 5 eyepieces, for a total magnification of 50. use the focusing knob to refocus the slideUsing a 5X objective and a 10X eyepiece, for instance, results in a total visual magnification of 50X, and vice versa.
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The magnification of microscope can be made to 50x by adjusting the parameters .
What is magnification of a microscope?
The capacity of a microscope to create an image of an object at a scale bigger (or even smaller) than its real size is known as magnification. Only when it is feasible to discern more details of an object in the image than when studying the object without the use of a magnifying glass can magnification be effective.
The steps for adjusting the magnification of microscope is given below
Set a slide on the stage. utilize a 4-objective lens at the lowest power (initially).Adjust the mirror or switch on the light to let light through the slide. Position stage as closely as possible to the lens.The lens must not touch the slide.Slide should depart from lens as you turn the focusing knob.Once the image is in focus, turn the focusing knob.Get a crisp image by using precise focus.10 objective lenses, 5 eyepieces, and a 50x magnification are the new parameters for the objective lens.reset the slide's focus by turning the focusing knob.A total visual magnification of 50X, for example, is achieved when using a 5X objective and a 10X eyepiece, and vice versa.Hence, the magnification of microscope can be made to 50x by adjusting the parameters .
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For an individual with the xxy chromosomal composition, the expected number of barr bodies in interphase cells is ________.
For an individual with the xxy chromosomal composition, the expected number of barr bodies in interphase cells is one.
What are barr bodies?A Barr body also known as X-chromatin is described as an inactive X chromosome in a cell with more than one X chromosome, rendered inactive in a process called lyonization, in species with XY sex-determination.
People having more than one X chromosome, the quantity of Barr bodies seen in interphase is always one fewer than total number of X chromosome. So,in this scenario we have above the person is having XXY chromosomal composition, the expected number of barr bodies in interphase cells is one.
In conclusion, Barr Bodies can be found in various biological samples such as hair, buccal cells, and blood.
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in biological anthropology, why is it useful to examine sexual dimorphism? group of answer choices it is the study of sexual intercourse between primates. it varies with the pattern of competition among males. it relates to sexual courtship rituals in primates. it determines male and female social hierarchy.
It determines male and female social hierarchy
What is anthropology ?
Anthropology is the study of what makes people human. Anthropologists investigate all the various dimensions of the human experience from a holistic perspective. To learn how and what mattered to human groups hundreds or thousands of years ago, they turn to the past through archaeology.
Anthropology is the study of what makes people human. Anthropologists investigate all the various dimensions of the human experience from a holistic perspective. To learn how and what mattered to human groups hundreds or thousands of years ago, they turn to the past through archaeology.
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