The velocity of nerve impulse propagation could be increased by:A. the process of nerve myelinationB. decreasing nerve diameterC. increasing nerve diameterD. A and C.
Answers
The velocity of nerve impulse propagation can be increased by A. the process of nerve myelination and C. increasing nerve diameter. So, the correct answer is D. A and C.
The velocity of nerve impulse propagation can be increased by both the process of nerve myelination and increasing nerve diameter. Therefore, the correct answer is D, A and C. Nerve myelination involves the formation of a myelin sheath around the axon of a nerve cell, which helps to increase the speed of nerve impulse propagation. Additionally, increasing the diameter of a nerve fiber can also increase the velocity of nerve impulse propagation.
Hence, The velocity of nerve impulse propagation can be increased by A. the process of nerve myelination and C. increasing nerve diameter. So, the correct answer is D. A and C.
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Related Questions
What type of molecule is doing the "work" in the picture
Answers
Answer:
where is the picture at?
If plasma accounts for 55% of the blood volume and plasma is 90% water, how many gallons of
water could be extracted from an adult female's blood?
Answers
About 45% of the various blood cell types and about 55% of blood plasma make up blood. A pale yellow, slightly hazy liquid blood plasma. Water makes up more than 90% of blood plasma and less than 10%
What is plasma used for in the body?
Your blood's liquid portion, called plasma, makes up 55% of the total volume of your plasma. Plasma circulates throughout the circulatory system and is required for your body to heal from wounds, supply nutrients, remove waste, and prevent infection.
Where can you find plasma?
The majority of your blood is plasma. It accounts for more than half (about 55%) of the entire material. Plasma is a pale yellow liquid that forms when the blood is separated from the rest of it. Plasma transports water.
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pollution can be controlled by ___ the pollution at the power plant
Bill nye pollution solutions video PLEASE HELP!!!!!
Answers
Bill Nye's Pollution Solutions video discusses this and other ways to reduce pollution.
Using the data you just reviewed, create a scientific argument of one to two paragraphs that support or oppose the current flu vaccine recommendations.
Answers
The flu vaccine is essential in our society and should be encouraged and financed whenever necessary. That's because, as we know, the flu is a disease of rapid proliferation and that imposes risks to the lives of some people. The vaccine has the ability to reduce the risk of a person being infected with the flu virus by 50%, this percentage is essential for people who are more sensitive to this virus such as the elderly, pregnant women and people with respiratory problems.
In addition, it is important that the manufacture and distribution of this vaccine is always financed, because the flu virus is a very changeable circle that is constantly changing and needs to be combated annually.
Answer:
Flu vaccinations are fundamental as they reduce the risk of flu illness by over 50%.
Explanation:
Flu vaccinations reduce the risk of flu illness by over 50%. This makes this process extremely important and fundamental for all human beings as they not only protect the person who gets the vaccine, but it also contributes to the prevention of spreading to other people, especially children and older adults who possess a greater risk of developing flu complications.
The antibodies that are produced by the vaccine prevent the flu virus from attaching to a healthy cell. However, if a person has not been vaccinated, the virus will attack the healthy cells because there is an absence of antibodies that prevent this process.
in the absence of oxygen, yeast cells can obtain energy by fermentation, resulting in the production of a. atp, , and lactate. b. atp, pyruvate, and acetyl coa. c. atp, pyruvate, and oxygen. d. atp, nadh, and pyruvate. e. atp, , and ethanol (ethyl alcohol).
Answers
The correct answer is option e. In the absence of oxygen, yeast cells can obtain energy by fermentation, resulting in the production of atp, and ethanol (ethyl alcohol).
In the absence of oxygen, yeast cells rely on fermentation to gain energy. During fermentation, glucose molecules are broken down into smaller molecules such as pyruvate, which are metabolized to produce energy. This energy is stored in the form of ATP, NADH, and other molecules. The end product of fermentation is ethanol (ethyl alcohol).
The production of ethanol and other byproducts provides the cell with energy, which is then used in cellular processes. The overall process of fermentation is anaerobic, meaning it does not require oxygen. Therefore, in the absence of oxygen, yeast cells can obtain energy by producing ATP, NADH, and ethanol.
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Which of the following accurately contrasts conventional tillage and conservation tillage?
O Conventional tillage employs more chemicals than conservation tillage.
O Conventional tillage uses larger equipment than conservation tillage.
O Conventional tillage leaves the ground more susceptible to erosion than conservation tillage.
Conventional tillage retains more of the prior year's surface residue than conservation tillage.
Answers
Answer:
C. Conventional tillage leaves the groud more susceptible to erosion than conservation tillage
Explanation:
i took the test
how do animal cells and plant cells react differently in a hypotonic solution
Answers
Answer:
In a hypotonic solution, an animal cell will fill with too much water and lyse, or burst open. However, plant cells need more water than animal cells, and will not burst in a hypotonic solution due to their thick cell walls; hypotonic solutions are ideal for plant cells.
Explanation:
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The presence of a rigid cell wall in plant cells allows them to withstand the pressure changes that occur in a hypotonic solution, whereas animal cells without a cell wall are vulnerable to lysis. This difference highlights the importance of understanding the unique features and responses of different cell types to changes in their environment.
Animal cells and plant cells are two types of eukaryotic cells with different structures and functions. One major difference between these two cell types is the presence of a rigid cell wall in plant cells but not in animal cells. In a hypotonic solution, which has a lower concentration of solutes compared to the concentration inside the cell, both plant and animal cells will experience changes in their volume and shape. However, the responses of these two types of cells to a hypotonic solution differ due to their structural differences.
When placed in a hypotonic solution, animal cells and plant cells will both experience a net movement of water into the cell. This is because water will move from an area of high concentration (outside the cell) to an area of low concentration (inside the cell) in an attempt to balance the concentration on both sides of the cell membrane.
In animal cells, the influx of water will cause the cell to swell and potentially burst (lysis) due to the lack of a rigid cell wall to maintain its shape. As water enters the cell, the volume of the cytoplasm increases, and the cell membrane stretches until it can no longer contain the excess water. This bursting of the cell can cause damage to surrounding tissues and can ultimately lead to cell death.
In contrast, plant cells have a cell wall that provides structural support and prevents them from bursting in a hypotonic solution. The influx of water will cause the plant cell to swell, but the cell wall will prevent it from bursting. Instead, the increased pressure on the cell wall causes the plant cell to become turgid, which is important for maintaining the structural integrity of the plant. The turgor pressure also helps to maintain the shape of the plant and allows it to stand upright.
However, if the plant cell is exposed to a hypotonic solution for an extended period, the excessive swelling and turgor pressure can become detrimental. The continuous influx of water can cause the cell to reach its maximum capacity, and the pressure can damage the cell wall, ultimately leading to the wilting of the plant.
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Hi, I want to know what tract means in biology. Pls, elaborate on that.
Answers
Answer:
Tract is the system of body parts , they perform functions together .
Explanation:
A Scientific tract , designed for instruction and entertainment, and adapted to schools, lyceums and families.
Click on the edit DNA, you will now see the original sequence used to make the protein. ATGCCGGGCGGCGAGAGCTTGCTAATTGGCTTATAA
Answers
ATGCCGGGCGGCGAGAGCTTGCTAATTGGCTTATAA edits the DNA of the first codon to AAA, so it changes to AAA CCG GGC GGC GAG AGC TTG CTA ATT GGC TTA TAA, so its complementary sequence is TTT GGC CCG CCG CTC TCG AAC.
What is DNA?Every cell's DNA contains information that is transformed into brief, portable RNA messages during transcription.
The fact that DNA is in charge of the process known as the protein synthesis method by which cells produce proteins is another highly significant function of DNA.
Therefore, DNA dictates the structure and function of your proteins, every component of your body, including your fingernails, eyes, and many other things are comprised of proteins.
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3. What evidence have you discovered to explain how natural selection
leads to changes in populations of organisms, such as orchid plants?
Answers
Some types of the evidence, such as the fossils and the similarities between the related living organisms, were used by Darwin to develop his theory of the natural selection, and are still used by today. Others, such as the DNA testing, were they not available in Darwin's time, but are used by the scientists today to learn more about the evolution.
The Natural selection is the mechanism of the evolution. Organisms that are more adapted to their environment and are more likely to survive and they pass on the genes that was aided their success. This process was causes species to change and then diverge over time. Darwin used multiple lines of the evidence to support his theory of the evolution by the natural selection -- fossil evidence, the biogeographical evidence, and the anatomical evidence.
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Which of the following conditions will result in the rabbit population pictured in the graph below?A graph with Years on the x-axis from 3 to 6 and Rabbits on the y-axis from 0 to 400, by hundreds. The line begins at (0, 200), increases to around 300 and then down to 200 again each year consistently.a.ample land, cold springsb.little land, normal conditionsc.moderate land, hot summersd.ample land, harsh winters
Answers
Without a proper context is quite vague, nonetheless, we are seeing a cyclin behavior, at the end of each year we see a drastic drop in population numbers so probably we are seeing the effect of seasonal changes, now by the type of habitat of rabbits and the harshness of certain seasons is more logical to assume that we are seeing the effect of winters, so the correct answer is option d.
why dont children look exactly like their parents?
Answers
Answer:
because parents only give the child 1/2 of their chromosomes
Explanation:
Answer:
because not exactly all genes are passed down to the child
Explanation:
i NEED help no one is answering
please help me with number 4 (only number 4)
Answers
Answer:
m
2
+
8
m
+
12
=
(
m
+
2
)
(
m
+
6
)
Explanation:
Notice that
2
+
6
=
8
and
2
×
6
=
12
So:
m
2
+
8
m
+
12
=
(
m
+
2
)
(
m
+
6
)
In general, we find:
(
m
+
a
)
(
m
+
b
)
=
m
2
+
(
a
+
b
)
m
+
a
b
So if you have a monic quadratic (one that has a leading coefficient of
1
) to factor, typically you are looking for a pair of factors of the constant term with sum or difference equal to the middle coefficient.
Which of the following is an example of a K strategists organism. A.Frog B.Elephant C.Turtle
Answers
Explanation:
Elephant is the correct answer.
Answer:
A . elephant
hope it is helpful to you
[Ch 22*] Experiments on learning in animals sometimes measure how long it takes mice to find their way through a maze. Only half of all mice complete one particular maze in less than 18 seconds. A researcher thinks that a loud noise will cause the mice to complete the maze faster. She measures the proportion of 40 mice that completed the maze in less than 18 seconds with noise as a stimulus. The proportion of mice that completed the maze in less than 18 seconds is:
Answers
The hypotheses for the test to answer the researcher's question are:
O H : p = 0.5 (null hypothesis)
H A : p > 0.5 (alternative hypothesis)
According to the null hypothesis, there is no discernible difference in the percentage of mice who finish the maze in under 18 seconds with and without noise. According to the alternative theory, considerably more mice than 50% completed the labyrinth in less than 18 seconds when there was noise.
The alternative hypothesis defines the direction of the difference, hence this is a one-tailed test.
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Full Question: Experiments on learning in animals sometimes measure how long it takes mice to find their way through a maze. Only half of all mice complete one particular maze in less than 18 seconds. A researcher thinks that a loud noise will cause the mice to complete the maze faster. She measures the proportion of 40 mice that completed the maze in less than 18 seconds with noise as the stimulus. The proportion of mice that completed the maze in less than 18 seconds is p = 0.7. The hypotheses for a test to answer the researcher's question are
O H : p=0.5, H. :p <0.5
O H: p=0.5, H:p > 0.5.
OH :p0.5, H.:P *0.5.
OH:p> 0.5, H.:P +0.5.
according the equilibrium theory of island biogeography, the species composition of an island will not change once equilibrium is reached. group of answer choices true false
Answers
The given statement is false. This is because the number of species only remains constant but the composition will change.
The equilibrium theory of Island biogeography describes the relationship between extinction and the immigration of the species on an island. This mainly depends on the size and distance from the mainland. So when the immigration rate and the extinction rate are equal or the same, this island is said to be in equilibrium.
At this equilibrium state, the number of species present on this island is the same, or constant. This number of species will never change. But the composition of this species may change. Therefore, the given statement is false.
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So what is catalyst?
Answers
Answer:
a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
"chlorine acts as a catalyst promoting the breakdown of ozone"
a person or thing that precipitates an event.
"the governor's speech acted as a catalyst for debate"
Explanation:
hope its help
THERE ARE CURRENTLY VEHICLES THAT RUN ON COAL.
*
True or false
Answers
Answer:
false
Explanation:
Answer:
True
Explanation:
There might still be some trains that run on coal and may not be.
A region experiences frequent landslides for m heavy rains. How can the local residents lower the frequency of landslides in the region?
Answers
To lower the frequency of landslides in a region experiencing frequent landslides due to heavy rains, local residents can implement the following measures:
Implement proper drainage systems: Constructing effective drainage systems can help divert excess water away from slopes and hillsides. This reduces the saturation of soil, minimizing the risk of landslides. The drainage systems can include channels, ditches, and underground pipes to efficiently manage the flow of water.
Plant vegetation and trees: Vegetation and trees play a crucial role in stabilizing soil and preventing erosion. Their roots bind the soil together, reducing the likelihood of landslides. Local residents can engage in afforestation and reforestation efforts, planting trees and vegetation on vulnerable slopes and hillsides. This helps enhance the stability of the soil and increases its ability to absorb water.
Terracing and contouring: Implementing terracing and contouring techniques can help control the flow of water down slopes. These practices involve creating steps or platforms on the slopes to slow down the movement of water and prevent erosion. Terracing and contouring also help in retaining moisture in the soil, reducing the risk of landslides.
By implementing these measures, the local residents can effectively lower the frequency of landslides in the region. Proper drainage systems, vegetation planting, and terracing techniques work together to manage water flow, stabilize soil, and minimize erosion, reducing the conditions that lead to landslides. These preventive measures can contribute to the overall safety and resilience of the area against landslides caused by heavy rains.
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name any two organs involved in digestive systemgifjritxudufhg
Answers
Answer small and large intestines
An experiment showed that the growth of pillar coral decreased in warm water in which other organisms blocked sunlight. Which conclusion can be made based on these data?
A.
Pillar coral are unable to eat or digest zooxanthellae.
B.
Pillar coral do not need zooxanthellae or sunlight to survive.
C.
Pillar coral need sunlight so the zooxanthellae inside them can make food.
D.
Pillar coral need warm water so they can live free of zooxanthellae.
Answers
Answer:
C) Pillar coral need sunlight so the zooxanthellae inside them can make food.
Answer:
C.
Pillar coral need sunlight so the zooxanthellae inside them can make food.
Explanation:
Pillar coral are zooxanthellate species, also meaning that they have a close relationship to the algae zooxanthellate.
elabora un algoritmo en el cual muestres cómo se originaron las células eucariotas modernas.
Answers
Answer:
Can you translate that to english? or french
Explanation:
Use arrows and key terms such as "red blood cells," "oxygen," and "EPO" to describe how high-altitude training helps athletes improve their performance at lower altitudes.
Answers
Answer:
Due to increase red blood cells.
Explanation:
High-altitude training helps athletes to improve their performance at lower altitude because high altitude increases the concentration of red blood cells in the blood. Due to training on high-altitude, the concentration of red blood cell increases in the blood which also increases the consumption of oxygen so when the athletes perform at lower altitude, the more amount of red blood cells in the blood provides natural boost to the muscle due to consumption of more oxygen by the muscle cells.
Where are the Buccinator and superior pharyngeal constrictor muscles attached to each other?
Answers
The buccinator muscle and superior pharyngeal constrictor muscle are attached to each other at the posterior pharyngeal wall. Together, these muscles work to aid in the process of swallowing.
The buccinator and superior pharyngeal constrictor muscles are not directly attached to each other, as they serve different functions and are located in different areas of the head and neck.
The buccinator muscle is found in the cheek and is a part of the facial muscles. It helps in moving food during chewing and assists in the act of blowing.
The buccinator muscle is a thin, flat muscle located in the cheek, while the superior pharyngeal constrictor muscle is one of the three pharyngeal muscles located in the pharynx.
The superior pharyngeal constrictor muscle is a pharyngeal muscle located in the neck. Its primary function is to help in the swallowing process by constricting the pharynx.
Although they are not directly attached, both muscles work together to facilitate the process of chewing and swallowing food.
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Classify each substance based on the intermolecular forces present in that substance.
Answers
The classification of the given substances can be H2O have hydrogen bond, CH4 have Dipole-dipole interaction, CH3Cl has dipole–dipole and dispersion only.
What are intramolecular forces?An intermolecular force (IMF) (or secondary force) is the force that mediates the interaction of molecules, including electromagnetic forces of attraction or repulsion that act between atoms and other types of neighboring particles, such as atoms or ions.
The complete question is:
Classify each substance based on the intermolecular forces present in that substance. Hydrogen bonding, dipole–dipole, and dispersion Dipole–dipole and dispersion only Dispersion only.
H20CH4COCH3ClThe classification of the given substances can be H2O have hydrogen bond, CH4 have Dipole-dipole interaction, CH3Cl has dipole–dipole and dispersion only.
Thus, this can be the possible classification for the given scenario.
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A common misconception is that all acids are strong and all bases are weak. Why is this statement incorrect?
Answers
A strong acid, such as hydrochloric acid (HCl), ionizes completely in water to produce a large number of hydrogen ions (H+). On the other hand, a weak acid, such as acetic acid (CH3COOH), only partially ionizes in water and produces a smaller number of hydrogen ions.
Similarly, a strong base, such as sodium hydroxide (NaOH), ionizes completely in water to produce a large number of hydroxide ions (OH-), while a weak base, such as ammonia (NH3), only partially ionizes in water and produces a smaller number of hydroxide ions.
Therefore, it is incorrect to assume that all acids are strong and all bases are weak because there are many examples of weak acids and strong bases, as well as strong acids and weak bases. It's important to understand the differences between strong and weak acids and bases in order to properly conduct chemical reactions and understand their properties.
I need help answering number 12
Answers
Glycolysis takes place in Cytoplasm were Reactant(inputs) is Glucose and product is pyruvate linear metabolic pathway of enzyme-catalyzed reactions helps to convert glucose into two molecules of pyruvate in the presence of oxygen . Glycolysis is the first step in the cellular respiration .
Krebs cycle takes place in Mitochondrial matrix were Reactant(inputs) is Acetyl coA and product is NADH, FADH2, oxaloacetate Krebs cycle converts the chemical energy of acetyl coenzyme A (acetyl CoA) into the reducing power of nicotinamide adenine dinucleotide (NADH). Krebs cycle takes third place in cellular respiration .
Oxidative phosphorylation takes place in Mitochondrial membrane or cristae were reactant(input ) is NADH and product is ATP. Oxidative phosphorylation is generation of most ATP molecules . This process takes second place in cellular respiration .
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word or phrase bank medial temporal lobes. caudal Head pons lateral eye movement sciatic nerve taste sensation Midbrain 31 pairs inner ears PNS 12 pairs medullar oblongata fibular nerve superior oblique hip joints Medially simultaneously Ischial gluteal upper limbs CNS dorsal root and ventral roots extrinsic eye sensory and motor signals anterior thigh occipital lobes neck taste sensations skeletal muscles crossed extensor rami intrinsic and extrinsic thoracic and abdominopelvic quadricep visceral signals Hearing anterolateral somatosensory cortex encapsulated nerve sense organ motor neuron larynx and pharynx effectors biceps and skin lumbosacral maxillary nerve spinal cord thermoreceptors and nociceptor lateral rectus medial arm the pons and the medullar oblongata nerve plexus mastication in the mouth. sternocleidomastoid abdominal wall and iliopsoas stretch reflex odorant stimuli side opposite 3 types internal and internal Heart optic chiasma nociceptors Foot swallowing somatic motor signals Golgi tendon interceptors interneuron photoreceptors deltoid teres minor exteroceptors thermoreceptors Electromagnetic Afferent triceps brachii anterior forearm develop command abductor anterior special sense vision, and taste two criterial neurological and sensory chemoreceptors multiple synapses Mechanoreceptors tibia monosynaptic stretch thermoreceptors synapses Afferent Eye withdrawer organs
1. The peripheral nervous system connects the body and environment to the…………………………. The PNS detects sensory stimuli and transmit it to the ……………………... The ……………………………. in turn process the sensory information, develop command, and send it via the ……………………….to the PNS effector like muscles and glands.
2. Cranial nerves are attached to structures in the………………. and …………………… regions of the body. These are sensory nerves, the motor nerves and the mixed motor and sensory nerves. There are ………………of cranial nerves named with Roman figures for nerve one to nerve twelve.
3. The trochlear nerve that moves the eye ………………………and inferiorly, originates from the inferior portion of the…………………………, and terminate on the …………………………. muscles of the eye. The oculomotor motor nerve that also move the eye originates from the superior and lateral portions of the ……………………. and terminate on the …………………………………. muscles and smooth muscles of the eye. The vestibulocochlear verve that controls ………………………….and equilibrium, originates from the vestibular and cochlear nerves of the………………., and terminates on nuclei of the cerebellum and……………………………….
4. The optic nerve that carries visual information, originates from the posterior of the………………………., and form an X-shaped structure called……………………., and terminates on the nuclei of the ……………………….and midbrain before it gets to the visual cortex of the…………………………... The olfactory nerve that carries……………………, originates form the olfactory epithelia and terminates on nuclei of the …………………………….
5. The vagus nerve is a mixed nerve that is responsible for the contraction of muscles surrounding the………………………………, originates from the …………………….and sensory receptors from the pharynx, larynx, skin, ears, certain blood vessels of the neck, innervate throat, anterior neck, visceral organs of …………………………… cavities. The glossopharyngeal nerves are mixed nerves responsible for ………………………. movement, originates from the……………………., and sensory receptor of the tongue, pharynx, and round the ears.
6. The facial nerve, which is responsible for facial expressions and other facial muscles, originates from the …………………… and the medullar oblongata and terminates on the facial muscles the provide ……………………. and somatic sensation from the external eye and nasal cavities. The trigeminal nerve has 3 branches, the ophthalmic nerve, the…………………., and the mandibular nerve. Their origin is from between …………………………………………. and innervates the primary ………………………………for facial sensations. The mandibula nerve innervates the muscles for ……………………………
Answers
1. The peripheral nervous system connects the body and environment to the CNS. The PNS detects sensory stimuli and transmit it to the CNS. The CNS, in turn, processes the sensory information, develop command, and send it via the motor neuron to the PNS effector like muscles and glands.
2. Cranial nerves are attached to structures in the head and neck regions of the body. These are sensory nerves, the motor nerves, and the mixed motor and sensory nerves. There are 12 pairs of cranial nerves named with Roman figures for nerve one to nerve twelve.
3. The trochlear nerve that moves the eye laterally and inferiorly originates from the inferior portion of the midbrain, and terminate on the superior oblique muscles of the eye. The oculomotor motor nerve that also moves the eye originates from the superior and lateral portions of the midbrain and terminate on the extrinsic eye muscles and smooth muscles of the eye. The vestibulocochlear verve that controls hearing and equilibrium originates from the vestibular and cochlear nerves of the inner ears, and terminates on nuclei of the cerebellum and midbrain.
4. The optic nerve that carries visual information originates from the posterior of the eye and form an X-shaped structure called optic chiasma, and terminates on the nuclei of the thalamus and midbrain before it gets to the visual cortex of the occipital lobes. The olfactory nerve that carries odorant stimuli originates from the olfactory epithelia and terminates on nuclei of the temporal lobes.
5. The vagus nerve is a mixed nerve that is responsible for the contraction of muscles surrounding the larynx and pharynx, originates from the medulla oblongata, and sensory receptors from the pharynx, larynx, skin, ears, certain blood vessels of the neck, innervate throat, anterior neck, visceral organs of thoracic and abdominopelvic cavities. The glossopharyngeal nerves are mixed nerves responsible for swallowing movement, originates from the medulla oblongata, and sensory receptor of the tongue, pharynx, and round the ears.
6. The facial nerve, which is responsible for facial expressions and other facial muscles, originates from the pons and the medulla oblongata and terminates on the facial muscles that provide somatic motor signals and sensory signals from the external eye and nasal cavities. The trigeminal nerve has 3 branches, the ophthalmic nerve, the maxillary nerve, and the mandibular nerve. Their origin is from between the pons and the medulla oblongata and innervates the primary sensory and intrinsic and extrinsic muscles for facial sensations. The mandibula nerve innervates the muscles for mastication in the mouth.
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Why is the low-tide is the most populated level of the intertidal zone
Answers
Answer: Mainly because of the protection by the water
Explanation:
the low zone is never really above the surface and in that sense life is more common there with the water as a protection
What is used to protect your eyes in a laboratory?
A. Goggles
B. Gloves
C. An apron
D. A sink
Answers
Answer:
A. Goggles
Goggles are used to protect your eyes