Sound waves enter the external ear and travel through a restricted path called the ear channel which prompts the eardrum. The eardrum vibrates from the approaching sound waves and sends these vibrations to three little bones in the center ear.
These bones are known as the malleus incus and stapes. The bones in the center ear enhance, or increment, the sound vibrations and send them to the cochlea, a snail-formed structure loaded up with liquid, in the internal ear. A versatile segment runs from the very start to the furthest limit of the cochlea, parting it into an upper and lower part.
This parcel is known as the basilar film since it fills in as the base, or ground floor, on which key hearing designs sit. When the vibrations make the liquid inside the cochlea swell, a voyaging wave structures along the basilar film. Hair cells tangible cells sitting on top of the basilar layer ride the wave. Hair cells close to the wide finish of the snail-molded cochlea identify more shrill sounds, for example, a newborn child crying. Those nearer to the middle distinguish lower-pitched sounds for example a huge canine yelping.
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Hearing, or audition, is the transduction of sound waves into a neural sign this is made viable by the structures of the ear The big, fleshy shape on the lateral thing of the head is referred to as the auricle.
The incoming sound waves motivate the eardrum to vibrate. The eardrum sends those vibrations to the 3 tiny bones in the middle ear known as the malleus, incus, and stapes. The bones inside the center ear expand, or growth, the sound vibrations and ship them to the cochlea within the internal ear.
Sound is transduced into neural signals in the cochlear region of the internal ear, which incorporates the sensory neurons of the spiral ganglia. these ganglia are positioned inside the spiral-shaped cochlea of the inner ear. The cochlea is attached to the stapes thru the oval window.
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during adolescence there is a tendency to see people engage in higher levels of risk-taking behavior. emotional outbursts are also quite common. this is explained by the relative underdevelopment of the ____________ lobe of the cerebral cortex. group of answer choices
During adolescence, there is a tendency to see people engage in higher levels of risk-taking behavior, and emotional outbursts are also quite common, which is explained by the relative underdevelopment of the frontal lobe of the cerebral cortex.
What is the brain's cerebral cortex?The brain's cerebral cortex refers to the outermost layer of the cerebrum, which is involved in many cognitive functions such as for example movement and speech.
This layer (the brain's cerebral cortex) is divided into different regions such as the frontal brain lobe, the parietal brain lobe, the temporal brain lobe and also the occipital brain lobe, which play different roles and develops during adolescence.
Therefore, with this data, we can see that the brain's cerebral cortex is composed of different regions such as the frontal region and its development is completed during the adolescence stage of an individual.
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All cells come from pre-existing cells
TRUE
or
FALSE
Answer: TRUE
Explanation: All living cells arise from pre-existing cells. The cell is where the structure and function of all living organisms come from. The activity of an organism depends on the number of independent cells. Energy flow occurs within cells.
why are extreme thermophiles like the thermatogae genus difficult to place in the bacterial tree of life?
It is difficult to place them in the bacterial tree because they have engaged in an horizontal, horizontal, gene, gene transfers.
What is bacterial tree?Bacterial trees are representations of putative evolutionary relationships between taxa, be they organisms, species, phyla or even genes. Bacterial trees can be used to define relationships between bacterial strains.In the bacterial tree, isolated bacterial tree are mapped to the top of the tree, with nodes inside the tree denoting their hypothetical ancestors. Nodes and taxa are connected by branches, the length of which represents the genetic distance between the connected groups. Bacteria are prokaryotes, so they have neither a nucleus nor membrane-bound organelles. Opposite to this, plants and animals are consists of eukaryotic cells. It has a nucleus and membrane-bound organelles such as mitochondria and the Golgi apparatus.To learn more about bacterial tree from the given link :
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The number of copies of an allele divided by the total number of alleles in a population is the?.
The number of copies of an allele divided by the total number of alleles in a population is the allele frequency.
The prevalence of a gene variant in a population is represented by its allele frequency. Alleles are variant forms of a gene that occur at the same chromosomal location or genetic locus. By dividing the total number of copies of each allele at that particular genetic locus in the population by the number of times the allele of interest is observed in a population, an allele frequency can be calculated. The frequency of alleles can be expressed as a percentage, a decimal, or a fraction. Allele frequencies are a measure of genetic diversity in a population. Allele frequency fluctuations over time may indicate genetic drift or the introduction of new mutations into the population.
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all cells are enclosed by a plasma membrane that is similar in and . question 14 options: thickness . . . composition permeability . . . content lucidity . . . texture structure . . . function
All cells are enclosed by a plasma membrane that is similar in structure and function.
Cell is the most basic unit of life. It is the building block of all the organisms. A cell is composed of cell organelles, cell membrane and cytoplasm. All of these components work together in order to keep the cell functional and alive.
Plasma membrane is the outer layer of the cell whose structure is composed of lipid bilayer along with proteins, carbohydrates and proteins. The function of the plasma membrane is to mediate the transport of molecules. The plasma membrane is semi-fluid in nature.
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When conditions in the environment change, a lack of genetic diversity may be disadvantageous for organisms that reproduce choose. . Genetic diversity may be advantageous for organisms that reproduce choose. When conditions in an environment change.
When conditions in the environment change, a lack of genetic diversity may be disadvantageous for organisms that reproduce asexually.
What is sexual reproduction?
A gamete with a single set of chromosomes joins with another gamete to create a zygote, which then grows into an organism made up of cells with two sets of chromosomes. Sexual reproduction is a type of reproduction that requires a complex life cycle. Mixing the genetic material from two persons of different sorts to create new living things (sexes). In the majority of higher creatures, the male sex generates a small, mobile gamete that travels to the larger, stationary gamete generated by the female to fuse with it (female).
What is asexual reproduction?Asexual reproduction is a form of reproduction in which the number of chromosomes or the fusion of gametes are not altered. The whole gene pool of their single parent is inherited by the offspring that are produced through asexual reproduction from either unicellular or multicellular organisms.
Thus from above conclusion we can say that when conditions in the environment change, a lack of genetic diversity may be disadvantageous for organisms that reproduce asexually.
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HURRY PLEASE!!!
If you change the difference in lag times of P and S waves from 00:01:50 to 00:04:00,
how does that change the distance of the earthquake to the seismic station?
The farther a seismic station is from the earthquake epicenter the greater will be the difference in time of arrival between the P and S wave.
As the P and S waves journey out from an earthquake the P waves get regularly farther ahead of the S waves. therefore, the farther a seismic station is from the earthquake epicenter the more may be the distinction in time of arrival between the P and S wave.
The distinctive waves every travel at different speeds and therefore arrive at a seismic station at specific times. P waves tour the fastest, so they arrive first. S waves, which tour at approximately half the rate of P waves, arrive later.
P and S waves may be used to discover the epicenter of an earthquake. Since P waves are faster than S waves, the larger the appearance time distinction between the 2 waves is, the farther that location is from the epicenter.
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Electrolytes help control fluid balance via __________, the movement of water through a semipermeable membrane based on solute concentration.
Osmosis aids in fluid balance regulation. depending on the concentration of the solute, the flow of water across a semipermeable membrane.
Do electrolytes regulate the amount of fluid in the cells?Electrolytes can be actively moved into or out of cells by the body to alter fluid levels. At order to maintain fluid equilibrium between the compartments, it is crucial to have electrolytes in the proper concentrations (a process known as electrolyte balance).
Quiz on How Does the Body Maintain Electrolyte Balance?The kidneys and the adrenal, parathyroid, and thyroid glands are among the organs involved in homeostatic processes to maintain electrolyte balance. The maintenance of normal serum concentrations of electrolytes is referred to as electrolyte balance.
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A number of scientists made contributions to cell theory. Which scientist was the first to use a light microscope to observe cells in a slice of cork?.
Leeuwenhoek A number of scientists made contributions to the cell theory. the scientist was the first to use a light microscope to observe cells in a slice of cork.
The cellular concept states that all organic organisms are composed of cells; cells are the unit of existence and all lifestyles come from preexisting existence. The cell theory is so installed nowadays that it forms one of the unifying concepts of biology.
The cellular concept definition states that cells are the constructing blocks of lifestyles. Cells both make up all dwelling things and run the tactics needed for lifestyles. Your hair, pores and skin, organs, and so on. are all made from cells.
This is important for our knowledge of biology due to the fact cells shape the basis of all lifestyles. we can have unicellular organisms, like bacteria, and yeasts. [And] mobile division, the department of a cell from one, to two, to 4, paperwork the premise of increase and development of all residing matters.
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Brain waves that are lowest in frequency and highest in amplitude are called _____________ waves.
EEG patterns brain waves that are most pronounced and have the lowest frequency.
Stage 4 brain waves: What are they?Stage IV sleep, the deepest level of sleep, is characterized by low frequency (1-4 Hz), high amplitude oscillations known as delta waves, the recognizable slow waves after which this stage of sleep is named. The complete process of transitioning from tiredness to deep stage IV sleep often takes an hour.
Are alpha brain waves amplitudes of high?The amplitude and frequency of alpha brainwaves are higher. From 9 to 14 cycles per second, they oscillate. A person in an alpha state is frequently one who has finished a task and is taking a break. A person who stops to contemplate or practice meditation.
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2.
An unknown microorganism was observed with a
compound light microscope. Identify the structure
that, if observed in the organism, would indicate
that it is an autotroph.
An unknown microorganism was observed with a compound light microscope. Identify the structure that, if observed in the organism, would indicate that it is an autotroph is chroloplast.
What is microorganism?Microbes are extremely minute living entities that are all around us and are invisible to the unaided eye. They are aquatic, terrestrial, and avian organisms. Millions of these bacteria, which are also referred to as microorganisms, reside in the human body. While certain microorganisms make us ill, others are vital to our wellbeing.Microorganisms are living things that are too small to be seen with the human eye, particularly single-celled organisms like bacteria. The four primary categories of microorganisms include mostly bacteria, fungus, protozoa, and some types of algae.For every human cell in the body, there are 10 microbes that help with digestion, vitamin K production, immune system development, and chemical detoxification.To learn more about microorganism refer to:
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the functional classification of joints is based on:
Functional classification of joints is based on the degree of mobility which is exhibited by the joints.
What is the functional classification of joints?The functional classification of joints is based upon the degree of movements or mobility that they allow. The three functional classes of joints include synarthroses, amphiarthroses, and diarthroses.
Synarthrosis is the type of joints which are immobile or allow only a limited range of mobility.
Amphiarthrosis is the joint which allows a small amount of mobility.
Diarthrosis is the joint which is the freely-movable synovial joints.
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Why is it accurate to claim that the legume-bacteria mutualism described in the text is contingent?.
Answer:
Legumes can form symbiotic relationships with nitrogen-fixing soil bacteria known as rhizobia.
Explanation:
This symbiosis results in the formation of nodules on the plant root, within which the bacteria can convert atmospheric nitrogen into ammonia that the plant can use.
The highlighted structure is called ___ and it is proportionally _in human compared to the similar structure in the sheep brain.
The highlighted structure is called pineal gland and it is proportionally smaller in humans compared to the similar structure in the sheep brain.
Sheeps have a small pineal gland in their elongated brain compared to that of rounded human brain's larger pineal gland. The pineal gland, often referred to as the conarium or epiphysis cerebri, is a small endocrine gland that is found in the brains of the majority of vertebrates. The pineal gland produces melatonin, a hormone derived from serotonin that controls sleep patterns in both seasonal and circadian cycles. The name of the gland comes from the way it resembles a pinecone. The epithalamus, which is at the center of the brain and situated between the two hemispheres, contains a groove where the two sides of the thalamus meet. This groove houses the pineal gland. The pineal gland is one of the circumventricular neuroendocrine secretory organs with the greatest blood solute permeability.
The majority of animals have pineal glands. The two photosensory organs found on the top of modern lampreys' heads were probably present in the vertebrate ancestor that all vertebrates share today. According to the skulls of numerous extinct Devonian fish, which have two parietal foramina, parietal eyes were once bilateral. The parietal eye and pineal gland of living tetrapods are most likely derived from the left and right parts of this organ.
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the photograph below illustrates , one of the main problems with modern commercial fishing. question 15 options: a) aquaculture b) bycatch c) invasive species d) overfishing
Many industrial fishing techniques not only deplete the ocean's fish population, but also ruin aquatic ecosystems. Thus, option D is correct.
What is the impact of modern commercial fishing?Overfishing, plastic pollution, habitat destruction, bycatch (catching unwanted marine life when fishing for a given species),
and other issues are having devastating effects that are felt throughout the entire planet. These issues are covered in the film Seas piracy.
Clams are typically harvested via dredging, which involves dragging a big metal scoop down the seafloor to collect them.
Therefore, overfishing, the main problems with modern commercial fishing.
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this plate was inoculated with a bacterial lawn and exposed to uv light for 90-180 seconds and then incubated for 48 hours. is there visible evidence of dna repair on this plate?
This plate was inoculated with a bacterial lawn and exposed to UV light for 90-180 seconds and then incubated for 48 hours. Heat and ultraviolet.
Bacterial lawns can be produced manually with the aid of frivolously spreading a high quantity of microorganisms onto an agar plate using a sterile cotton swab or a Drigalski spatula. rather an automated gadget can be used including a spiral plater in which the plate is turned around and the sample is spread frivolously using an automated dispenser.
Most bacteria develop in colony layout and colonies will simplest seem on areas of the plate that were streaked on and appears like small white circles on a petri dish. however, for swarming (lawn) increase, it'll appear like a hazy blanket of boom that expand past the vicinity you made the streaking.
The microorganism was poured into what's known as a bacterial lawn on the agar plate. As the encompassing cells are inflamed and killed with the aid of the launched viruses, a clear spot at the agar---in the bacterial garden--develops, called a plaque.
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37.following meiosis i, the daughter cells are ; following meiosis ii, the daughter cells are ; and following mitosis, the daughter cells are . a.diploid; haploid; diploid b.diploid; diploid; haploid c.haploid; haploid; diploid d.haploid; haploid; haploid
Answer:
C
Explanation:
Classify and summarize the five ways particles move through the membrane. Make notes and sketches in the rectangle for each one.
Classify and summarize the five ways particles move through the membrane. Make notes and sketches in the rectangle for each one. Osmosis.
The mobile membrane, also referred to as the plasma membrane, is located in all cells and separates the interior of the cellular from the outdoor environment. The cellular membrane consists of a lipid bilayer that is semipermeable.
The cell membrane regulates the transport of substances getting into and exiting the cellular Body membranes are skinny sheets of tissue that cover the body, line frame cavities, and cowl organs within the cavities in hollow organs. They can be categorized into epithelial and connective tissue membrane.
Membranes may be usually labeled into artificial membranes and biological membranes. organic membranes include cell membranes (outer coverings of cells or organelles that permit passage of certain materials); nuclear membranes, which cover a cellular nucleus; and tissue membranes, such as mucosae and serosae.
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muscles that act as synergists seem to have valuable functions, especially in stabilizing joints. briefly explain their functions.
By encouraging the same motion or by minimizing unwanted or unneeded motions that could take place while the prime mover contracts, synergists support agonists.
Fixator: To enable the agonist work as efficiently as possible, the force applied in a motion is the muscle(s) which stabilizes the source of the agonists and the bone that the source spans (moves across). Synergist. The biceps muscle and brachialis work together to produce a biceps curl, while the brachialis serves as the agonist. while the prime mover contracts, synergists support agonists.The latter uses the first two to help stabilize the elbow joint while doing the bicep curl exercise. Skeletal muscles only contract in one plane. They always arrive in pairs as a result. Whenever one muscle in a couple contracts, for example to bend a joint, its opposite muscle contracts and pulls.
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The brachial plexus gives rise to all of the following nerves except:
A. the axillary nerve
B. the radial nerve
C. the obturator nerve
D. the median nerve
E. the ulnar nerve
The code for the malignant neoplasm is C19 when the results of the biopsy determined a malignant neoplasm of colon and rectum.
What is biopsy and what is the code for the malignant neoplasm here?Biopsy is a medical test done to check if the tissue or organ's cell is getting cancerous and to consider the tumors malignant and in biopsy test a sample of tissue is cut and taken to be under consideration for the further check up of the cut tissue.
Here the question is asked of the patient admitted for the biopsy of rectal tissue and the results came malignant that is cancerous and the code of the neoplasm.
Therefore, The code for the malignant neoplasm is C19 when the results of the biopsy determined a malignant neoplasm of colon and rectum.
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Mati is conducting an experiment where he observes 10 sunflower plants at different times of the day. He collects his data over several days a sampling of which can be seen below.
What can Mati conclude about sunflower plants?
Answer:
Person M concludes that the sunflower plants are showing heliotropism behavior.
Explanation:
What are heliotropism and heliotropic plants?
Heliotropism, also known as solar tracking, is the practice of a plant tracing the path of the sun throughout the day.Helio means "sun" and tropism means "turn" or "change".Heliotropic plants are plants that slowly follow the sun's path across the sky throughout the day, drifting back at night. Here, the sunflowers exhibit heliotropic movement, indicating that they have learned to track the sun's path. This type of movement helps to improve the plant's performance.From this, person M concludes that the sunflower is a heliotropic plant that tracks the sun's path.
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Describe the structures within cells that govern heredity, and describe where they are located.
The structure that controls the cell is the DNA in the nucleus of the cell.
DNA -The genetic material that contains genetic information.present on the chromosome of the nucleus. The genetic information inDNA is encoded in four nucleobases: adenine, guanine, cytosine, and thymine. The most unique feature ofDNA is that it replicates itself, making copies that are similar to itself.DNA is a double helix structure found in all organisms, including some viruses.These genes play an important role in determining certain details of how we exist biologically. Chromosomes are made up of genes. More specifically chromosomes are mostly DNA molecules of which genes are parts. DNA is the genetic material of humans and almost all other organisms. Most of the DNA is present in the cell nucleus, but a small amount is also present in the mitochondria. DNA contains the code for building and maintaining organisms.
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developing long-term sources of clean water to improve health and preserve local ecosystems while creating a competitive advantage is an example of:
Developing long-term sources of water that are free from pollutants to boost health and protect local ecosystems while creating a competitive advantage exemplifies: (B) Environmental sustainability.
Environmental sustainability seeks to enhance human health and well-being through the conservation of natural resources such as water, land, minerals, etc. It ensures that no harm is done to the local ecosystems.
The question is incomplete. The complete question is:-
Developing long-term sources of water that are free from pollutants to boost health and protect local ecosystems while creating a competitive advantage exemplifies:
(A) Social sustainability
(B) Environmental sustainability
(C) Economic sustainability
(D) Physical sustainability
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Rabbits are important grazers, maintaining some important grassland habitats. If another catastrophe were to reduce rabbit populations what would happen?.
Important grazers, rabbits help preserve some crucial grassland environments. There would be more grass for the remaining rabbits if a second catastrophe reduced the population of rabbits. As there will be fewer rabbits to consume them, the density of grass plants will rise as the number of rabbits decreases.
In agriculture, grazing is an animal husbandry practise whereby domestic livestock are allowed to forage outdoors and consume wild plants in order to transform the cellulose found in grass and other forages—which is otherwise indigestible (by human guts)—into meat, milk, wool, and other animal products, frequently on land unsuitable for arable farming.
Since the dawn of agriculture, there has been grazing; before the first permanent settlements were built around 7000 BC, nomads domesticated sheep and goats, allowing for the keeping of cattle and pigs. Deforestation, extinction of native fauna, pollution of streams and rivers, overgrazing, soil degradation, ecological disturbance, desertification, and ecosystem stability are only a few of the detrimental effects of livestock grazing on the environment.
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Which adaptation favors the survival of an organism? responses a ground squirrel population in the forest develops webbed feet for swimming a ground squirrel population in the forest develops webbed feet for swimming lengths of beaks in a bird population increase to the point birds can no longer groom themselves lengths of beaks in a bird population increase to the point birds can no longer groom themselves proteins expressing color in butterfly wings mutate to inhibit camouflaging abilities of butterflies proteins expressing color in butterfly wings mutate to inhibit camouflaging abilities of butterflies a desert coyote population develops the increased ability to cope with low water conditions
Adaptations are any behavioral, functional or structural changes in organisms that help in their survival in their respective habitat.
What is Adaptation?Adaptation is defined as any physical or behavioral trait of an animal that helps it survive better in its environment.In other words, conditioning is something about or doing with your body that helps you find food, water, companionship, and shelter. In biology, adaptation has three specific meanings, First, it is the dynamic evolutionary process of natural selection that adapts organisms to their environment and improves their evolutionary fitness. Second, the state that the population reaches during this process. Adaptation also influences behavior, affecting how an organism responds to its environment. An example of adaptation is the way some plants have adapted to life in hot, dry deserts. Plants which are called succulents have adapted to this climate by storing water in their short, thick stems and leaves.To learn more about Adaptation from the given link :
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osteoporosis is a disease that results in weakened, porous bones. it is most common in post-menopausal women. what type of change in bone cell activity could cause osteoporosis?
The decrease in estrogen that occurs during the perimenopausal transition period is what causes osteoporosis because it leads to a greater rate of bone resorption than bone growth.
What is osteoporosis?The hip, the backbone (spine), and the wrist are the areas of the body most commonly affected by osteoporosis, which is a disease that weakens the bones to the point where they shatter easily. Osteoporosis is sometimes referred to as a "silent illness" since its symptoms may not manifest themselves until a bone is fractured.
The deficiency of calcium during a lifetime is one of the factors that can contribute to the development of osteoporosis. A diet deficient in calcium has been linked to decreased bone density, an accelerated rate of bone loss, and an increased risk of fractures. Both men and women can experience bone loss if they severely restrict their food intake and maintain a low body weight.
Osteoporosis is caused by the drop in estrogen that happens throughout the perimenopausal transition phase. This decline promotes a larger rate of bone resorption than bone formation, which ultimately results in osteoporosis.
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Of the three energy systems, which one generates the most atp?
Of the three energy systems, the one that produces most energy is the aerobic energy system.
Energy systems are the pathways that synthesize energy inside the body. There are three energy systems, these are: (1) Anaerobic Alactic (ATP-CP) Energy System; (2) Anaerobic Lactic (Glycolytic) Energy System; and (3) Aerobic Energy System.
Aerobic energy system is the one that produces the maximum amount of energy in the body. It requires oxygen for the process and it breaks down the carbohydrates and fats present inside the body. Around 30-32 molecules of ATP are formed by the complete processes of the aerobic energy system.
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You will notice a difference in velocity between the median and lateral axons. Use your knowledge of earthworm anatomy to explain which axon is faster and why.
Using earthworm anatomy, the median axon fiber has a larger velocity because it is larger in diameter.
Anatomy of earthworm: Externally, a skinny non-cell cuticle covers the frame wall of the earthworm. Underneath this cuticle, a layer of the epidermis, observed through muscle layers and coelomic epithelium (internal layer) is sheathed. The epithelium includes a unmarried layer of glandular columnar epithelium.
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Based on small subunit rRNA phylogeny studies, the current view is that there are ________ domains of life.a.twod.fiveb.threee.sixc.four
Based on small subunit rRNA phylogeny studies, the current view is that there are three domains of life.
What three spheres of life are there?The three domains of life are bacteria, archaea, and eukarya. These areas are determined by: The cellular makeup of creatures. The simplest and smallest cell types—those without a nucleus—are known as archaea.
Do the three realms of life always exist?Summary. For thirty years, it has been accepted as true that the three domains of life—Bacteria, Archaea, and Eukarya (eukaryotes)—represent three distinct realms of existence. Recent research contradicts this.
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contraction of the subscapularis the arm, and contraction of the supraspinatus the arm. multiple choice question.
Contraction of the subscapularis medially rotates the arm, and contraction of the supraspinatus abducts the arm
What is subscapularis and supraspinatus ?The rotator cuff apparatus is made up of four muscles, one of which is the subscapularis. The muscles in the supraspinatus, infraspinatus, and teres minor are the other three. Although it can also help with adducting the humerus, the subscapularis muscle's main job is internal rotation. The subscapularis nerve supplies the muscle with blood.
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