The ability of an organism to respond to stimuli is called sensitivity. Sensitivity is the ability of an organism or a system to detect and respond to changes in its environment or internal conditions.
This can include a wide range of stimuli, such as light, sound, touch, temperature, chemicals, and other environmental factors. Sensitivity is a key characteristic of living organisms, allowing them to adapt and respond to changing conditions in their environment. Sensibility, on the other hand, refers to the capacity for emotional or intellectual response, rather than the ability to respond to physical stimuli. Movement, while related to sensitivity and often a response to stimuli, refers specifically to the physical act of moving or changing position. The ability of an organism to respond to stimuli is called sensitivity. Sensitivity is the ability of an organism or a system to detect and respond to changes in its environment or internal conditions. This can include a wide range of stimuli, such as light, sound, touch, temperature, chemicals, and other environmental factors. Sensitivity is a key characteristic of living organisms, allowing them to adapt and respond to changing conditions in their environment. Sensibility, on the other hand, refers to the capacity for emotional or intellectual response, rather than the ability to respond to physical stimuli. Movement, while related to sensitivity and often a response to stimuli, refers specifically to the physical act of moving or changing position.
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birds have reduce the energetic cost of flying. this example best illustrates which major theme in biology?
Birds have reduced the energetic cost of flying. This example best demonstrates Evolution which is a major theme in biology.
Evolution is the modification in heritable traits of biological populations over successive generations. Evolutionary processes give drift to diversity at every biological organization level. Many morphological and behavioral characteristics of birds have evolved which lessen the energy expenditure of the flight. Examples are wing shape, the usage of thermals and tail winds, geographic lift, and V-formation flight. Instead of heavy jaws and teeth, they have light beaks. And instead of fur, they have feathers.
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The information carried by a DNA molecule is in __________.
the order of the nucleotides in the molecule
its amino acid sequence
the sugars and phosphates forming its backbone
the total number of nucleotides it contains
The DNA's nucleotide sequence contains the genetic information. Each DNA molecule is made up of two complementary strands of nucleotides that are joined by hydrogen bonds to create a double helix.
What is DNA?DNA, which is an abrreviation for deoxyribonucleic acid, is how majority of organisms we know of store their genetic information. Almost every cell in a person contains their unique DNA. Nuclear DNA, which makes up the majority of DNA in a cell, is also present in very small amounts in the mitochondria (where it is called mitochondrial DNA or mtDNA). Food energy is converted by cellular organelles called mitochondria into a form that may be used by cells.
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explain the gas exchange between the circulatory and respiratory systems.
Oxygen is taken up by the respiratory system and delivered to a circulatory system (blood).
As part of cellular respiration, the circulatory system transports nutrients from of the digestive system and oxygen to the cells. The blood then transports this carbon dioxide waste material back to the lungs where it is expelled.
During this process, carbon dioxide travels from of the blood to the lungs. This occurs in the lungs here between alveoli and a collection of blood capillaries known as capillaries that are found inside the alveolar walls. Oxygen is taken up by the respiratory system and delivered to a circulatory system (blood).
(Explain how the circulatory and respiratory systems work together in order for cellular respiration to occur?)
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the trait of medium-sized leaves in iris is determined by the genotype pp'. plants with large leaves are pp, whereas plants with small leaves are p'p'. a cross is made between two plants each with medium-sized leaves. if they produce 80 offspring, what would be the expected number of offspring having large leaves? a. 40 b. 80 c. 60 d. 20
(a) the trait of medium-sized leaves in iris is determined by the genotype pp' then the expected number of offspring having large leaves are 20.
PP = large leaves
P'P' = small leaves
PP' = medium leaves
PP' was crossed with another PP' plant:
PP' x PP'
progeny = PP, 2PP', and P'P'
PP = 1/4 x 80 = 20 large size leaves plants
PP' = 1/2 x 80 = 40 medium sized leaves plants
P'P' = 1/4 x 80 = 20 small sized leaves.
Hence the expected number of offspring having large leaves are:
20 large size leaves plants
40 medium sized leaves plants
20 small sized leaves.
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the major reason that anti-parallel beta-stranded protein structures are more stable than parallel beta-stranded structures is that the latter:
They have weaker hydrogen bonds laterally between adjacent strands. Antiparallel ß sheets are a little more stable than parallel ß sheets because the hydrogen bonding structure is more perfect in them. Click the image below to view parallel and antiparallel ß sheet diagrams.
Protein structure is the three-dimensional arrangement of the atoms within an amino acid-chain molecule. Proteins, or more specifically polypeptides, are made up of amino acid sequences that function as the polymer's monomers. Since an amino acid monomer serves as the basic building block of a polymer, it is occasionally referred to as a residue. Amino acids undergo condensation processes, losing one water molecule each time, in order to form peptide linkages with one another and generate proteins. A peptide, as opposed to a protein, is a chain of amino acids that contains fewer than 30 amino acids.
The complete question is:
The major reason that antiparallel β-stranded protein structures are more stable than parallel β-stranded structures is that the latter:
A) are in a slightly less extended configuration than antiparallel strands.
B) do not have as many disulfide crosslinks between adjacent strands.
C) do not stack in sheets as well as antiparallel strands.
D) have fewer lateral hydrogen bonds than antiparallel strands.
E) have weaker hydrogen bonds laterally between adjacent strands.
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What is glucose test for bacteria?
The glucose test for bacteria is a laboratory test used to determine whether bacteria are able to utilize glucose as a carbon and energy source for growth.
In this test, a small amount of a bacterial culture is inoculated into a medium containing glucose and other nutrients. If the bacteria are able to use glucose as an energy source, they will metabolize it to produce acid and/or gas, which can be detected by the presence of a color change or gas production in the medium.
The glucose test is often used as part of a series of tests to identify and classify bacterial species. It can help to distinguish between different groups of bacteria based on their ability to metabolize different sugars and other nutrients. The results of this test, along with other tests, can be used to determine the bacterial species and to guide treatment options for bacterial infections.
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Under what conditions would the butterflyfish be unable to adapt to the change in the food sourcer
The reef butterflyfish is well suited to life on the reef. Its compressed body allows for darting in and out of coral. The small, protractile mouth is specifically adapted to crevice feeding.
what is called the largest type of lymphatic vessel, which deposits lymph into the subclavian veins
Answer:
The largest type of lymphatic vessel that deposits lymph into the subclavian veins is called the thoracic duct.
Explanation:
Explain how rocks play a major role in both relative and numerical dating
Relative dating is the process of assigning a date based on the rock layer and any known objects discovered at a similar level. The amount of half-lives that a rock has had can be used in numerical dating to determine the rock's age.
The practice of estimating an object's age based on its surroundings is known as relative dating. A billion-year-old rock will probably be buried deeper in the earth than the most recent smartphone that you just dropped, according to the fundamental and overarching notion. There are numerous approaches to doing this. To put it another way, items of the same age usually have the same depth. But, numerical dating gives us a more precise way to establish an object's age. Rocks, fossils, and artifacts don't come with birth certificates stating when they were made, so we utilize a range of other techniques to establish their ages, including radioactive dating.
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Glycerol
A fat molecule is composed of two types of smaller molecules: ___ and fatty acids.
A glycerol backbone and three fatty acid tails make up the two types of components that make up a fat molecule. A fatty acid is made up of a long hydrocarbon chain connected to a carboxyl group, whereas glycerol is a tiny chemical molecule containing three hydroxyl (OH) groups.
Natural fatty acids between 4 and 28 have an unbranched chain with an even number of carbon atoms in the majority of cases. Fatty acids can account for as much as 70% of the total weight of the lipids in some species, such as microalgae. In other species, fatty acids, such as triglycerides, phospholipids, and cholesteryl esters, are not present in their purest form. In all of these forms, fatty acids are vital cellular building components and one of the main nutritional sources of energy for animals.
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All living cells, both prokaryotic and eukaryotic, have the following cell structures: plasma membrane, cytosol, ribosomes, and at least one chromosome. Choose any one of these. Describe its basic structure (including molecular composition) as well as the function. Explain why a cell could not exist without the function(s) performed by this cell structure.
Prokaryotic cells and eukaryotic cells are the two fundamental types of cells. The primary distinction between eukaryotic and prokaryotic cells is the presence of a nucleus in eukaryotic cells.
The nucleus stores DNA, the genetic material found in cells. The nucleus is surrounded by a membrane. Prokaryotic cells do not have nuclei. Their DNA, on the other hand, is floating around inside the cell. Prokaryotes are organisms that have prokaryotic cells.
All prokaryotes are single-celled (unicellular) organisms. Bacteria and archaea are the only prokaryotes. Eukaryotes are organisms that have eukaryotic cells. Protists, fungi, plants, and animals are all examples of eukaryotes. Eukaryotes are multicellular organisms. Eukaryotes can only have one cell. Bacterial and eukaryotic cell architectures are similar.
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Identify the three types of these types of technology implemented at the Gautrain
Answer:
Tunnel Boring Machine
Emergency Access Shafts
The use of Contactless Smart Cards for passenger payments
Explanation:
what is the scientific name for the northern lights?
The northern lights, also known as aurora borealis, are a magnificent, multicolored light show that can frequently be seen in the northern hemisphere's night sky.
The aurora australis, or southern lights, are the name for auroras that occur in the southern hemisphere. Due to their proximity to Earth's magnetic poles, the northern and southern lights are both polar lamps, or aurora polaris. A truly breathtaking natural occurrence, polar lights (aurora polaris) can be seen in the both northern and southern hemispheres. The scientific name for the northern lights is aurora borealis, and the name for the southern lights is aurora australis. Thankfully, they happen frequently. Landlord of the northern lights tour operator Lights Over Finland and photographer Chad Blakely said, "The lights are happening twenty-four hours a day, seven days per week, 365 days a year."
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You are studying cellular respiration in biology. Your lab partner finds this model of aerobic respiration, but is confused as to what is
happening. She asks you for your help. Examine the model. What statements would help clarify the process of aerobic cellular
respiration? Choose ALL that apply.
A) Aerobic respiration requires glucose and oxygen.
B) Aerobic respiration produces ATP from glucose and water.
C) Aerobic respiration produces carbon dioxide and water as a byproduct.
D) Aerobic respiration is the process that provides usable energy in the form of ATP.
E) Aerobic respiration occurs in the mitochondria of the cells of eukaryotes, including plants and animals.
A) Aerobic respiration requires glucose and oxygen. Oxygen is used in the breakdown of glucose, producing energy in the form of ATP.
What is Aerobic?Aerobic exercise is a type of physical activity that requires the use of large muscle groups and increases the heart rate to a target level. It is also known as cardiovascular exercise because it strengthens the heart and lungs, improving their function.
B) Aerobic respiration produces ATP from glucose and water. During aerobic respiration, glucose and oxygen are broken down to form ATP, water, and carbon dioxide.
C) Aerobic respiration produces carbon dioxide and water as a byproduct. Carbon dioxide and water are produced as a result of the breakdown of glucose and oxygen.
D) Aerobic respiration is the process that provides usable energy in the form of ATP. During aerobic respiration, glucose and oxygen are broken down to form ATP, which is a form of usable energy.
E) Aerobic respiration occurs in the mitochondria of the cells of eukaryotes, including plants and animals. Aerobic respiration takes place in the mitochondria, which are found in the cells of eukaryotes.
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How do butterflies maintain homeostasis?
Butterflies are able to maintain homeostasis primarily by migrating away from the sun to find warmth. All animals have the ability to maintain body homeostasis. This is how animals keep everything in balance to survive.
How do butterflies regulate their body temperature?Butterflies are cold-blooded animals and have no way of regulating their body temperature. Instead, they must rely on their behavioral instincts to warm themselves up in order to fly. This is also known as thermoregulation.
How do butterflies adapt to their environment?Some butterflies protect themselves with camouflage. By folding the wings, the underside is exposed and blends in with its surroundings. This strategy, known as crypsis, makes them nearly invisible to predators. However, bright colors and distinctive wing patterns can be advantageous.
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in which strand of cellular nucleic acids would you expect to find 2'-hydroxyls groups on the riboses?
The correct answer is option C. TATATATATA.
The DNA strand, which is made up of four separate nitrogenous bases, adenine (A), cytosine (C), guanine (G), and thymine (G), contains the 2-hydroxyl groups on the riboses (T). Thymine (T), a repeating nitrogenous nucleotide, makes up the whole of DNA strand C. TATATATATA.
Consequently, it may be inferred that this DNA strand includes 2-hydroxyl groups since thymine (T), one of DNA's four nitrogenous bases, is present in it.
The five-carbon sugar ribose, which maintains the nitrogenous base in place on the DNA strand, is where the 2-hydroxyl groups are found.
In contrast to RNA, which has a ribose sugar with one oxygen atom in place of a hydrogen atom, this strand of DNA's ribose sugar is made up of 2-hydroxyl groups, which is a crucial distinction to make.
Complete Question:
In which strand of cellular nucleic acids would you expect to find 2- hydroxyls groups on the riboses?
A. AGGCTTAGCC
B. CAATTGGCAC
C. TATATATATA
D. UACCAUGGCA
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why are comets composed of ice and dust? no goovxgle answers. if ur answer is correct and makes sense ill give u brainiest, give 5 stars and cavxsh avxpp u 3
Comets are composed of ice and dust because they are remnants from early solar system composed of materials that have remained unchanged since the formation of solar system about 4.6 billion years ago.
Why are comets composed of ice and dust?The ice in comets is believed to be made up of water, with smaller amounts of other volatile compounds like carbon dioxide, methane, and ammonia. The dust in comets is composed of materials including silicates and metals that formed into solid particles.
Early solar system was a cold place, and materials in the outer regions of solar system, where comets are thought to have originated were never heated enough to vaporize and this allowed water and other volatile compounds to freeze into ice and the solid particles combined to form the dust.
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Which is the best example of a thermal insulator?
Oglass flask
O apartment radiator
O
O plastic handle of tea pot
stainless-steel cooking pot
Answer:
C. Plastic handle
Explanation:
Materials that are poor conductors of thermal energy are called thermal insulators. Gases such as air and materials such as plastic and wood are thermal insulators.
Neutrophils remove invading microorganisms through a process called options:a. phagocytosis. b. passive transport.c. pinocytosis. d. facilitated diffusion.
The correct choice is a. Cells eat and disintegrate particles, such as bacteria and other cells, through a process called phagocytosis.
As it aids in defending the body from external intruders, it is an essential part of the immune system. As part of the process of phagocytosis, the particles must first be recognized, then they must be bound to, then they must be engulfed, and ultimately they must be digested and discarded. In order to defend themselves, cells like white blood cells employ a process called phagocytosis to take in and digest foreign substances like bacteria and viruses. Innate immune responses to infection, such as phagocytosis, are crucial because they assist in removing and destroying invasive microorganisms.
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When pollen of a flower is transferred to the stigma of another flower of the same plant, the pollination is referred to as
A. geitonogamy
B. autogamy
C. allogamy
D. xenogamy
The correct option is A. Geitonogamy
Geitonogamy refers to the movement of pollen grains from the anther of one flower to the stigma of another blossom on the same plant.
The process of moving pollen grains from an anther to the stigma of a pistil is known as pollination. It is a method of bringing non-motile male and female gametes together for fertilisation. Self-pollination is the pollination process in which pollen grains from the anther combine with the stigma of the same flower or a different blossom on the same plant.
Autogamy and geitonogamy are the two types of self-pollination. Geitonogamy is the movement of pollen grains from one flower's anther to the stigma of another on the same plant. This transmission is aided by a pollinating agent. Because the pollen grains are derived from the same plant, it is genetically equivalent to autogamy.
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which two of the following statements regarding heterotrophs are true? a. amino acids may be a good carbon source for a teterotroph. b. most heterotrophs are restricted to just a few caron substrates
Amino acids may be a good carbon source for a heterotroph
What roles do heterotrophs play?
There is no doubt that heterotrophs serve as consumers in the food chain. Additionally, they obtain nutrition through holozoic, saprotrophic, and parasitic sources. They also enjoy dissecting sophisticated organic molecules.
As heterotrophs are unable to produce their own food, they must consume it or absorb it. Heterotrophs are also referred to as consumers because of this. Contrary to autotrophs, which must use some of their energy for carbon fixation, heterotrophs are able to utilise all of the energy they acquire from food for growth and reproduction by eating reduced carbon molecules.
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True or False?
If x > 0, then x + 2 = 7.
Answer:
True
Explanation:
If x > 0, the value if x becomes 5
5 + 2 = 7
Which makes the statement true
hope it helps :)
during careful examination of a tissue under the microscope, john makes note of a large extracellular matrix and blood vessels between the cells in the tissue. what is this type of tissue?
During careful examination of a tissue under the microscope, john makes note of a large extracellular matrix and blood vessels between the cells in the tissue. This type of tissue is the Connective tissue.
Connective tissue is tissue that supports, protects, and structures the body's other tissues and organs. Connective tissue also stores fat, helps transport nutrients and other substances between tissues and organs, and helps repair damaged tissue. Cells, fibres, and a gel-like material comprise connective tissue. It has already been built.
Connective tissue includes several types of fibrous tissue that differ only in density and cellular structure, as well as more specialized and recognizable types such as bone, ligament, tendon, cartilage, and adipose tissue. They are spread over all parts of the body. Tissue that supports, protects, and structures the body's other tissues and organs. Connective tissue also stores fat, helps transport nutrients and other substances between tissues and organs, and aids in the repair of damaged tissue.
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in the cardiac myocyte the phase of rapid depolarization is due to ___
Option B is correct. The step of rapid depolarization in the cardiac myocyte is brought on by a net inflow of positive ions, Na+, into the cell.
The five phases of the cardiac action potential are generated by the cardiovascular or venticular myocyte. Phase 0 is when rapid depolarization takes place. The output across the membrane of the cardiac cell experiences a quick change during this phase that only lasts for a very brief time. It happens as a result of a net flow, or capillary permeability, of Na+ ions into the heart's cells from outside the organ. Therefore, option B should be selected.
Pacemaker cells are the ones that create the nerve impulse in the heart. The majority of the time, quasi cells outside of the heart are what activate the transmission of positive ions like sodium ions to the cell and cause rapid depolarization.
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Complete question-
In the cardiac myocyte, the phase of rapid depolarization is due to
A. increased permeability to Ca2+
B. increased permeability to Na+
C. Reduced permeability to Cl-
D. None of the above are correct.
Why are there so few ecosystems with more than four levels of consumers?
A) Predators at the highest trophic levels simply are not intelligent enough to hunt other top predators.
B) Consumers at these highest trophic levels typically form social groups that stop reproducing at high densities.
C) Top consumers compete with and kill each other with increasing population size.
D) Biomass decreases by about 90% at each trophic level, moving upward
D) Biomass decreases by about 90% at each trophic level, moving upward is true.
The amount of energy that is available at each trophic level in an ecosystem determines how many levels there can be. Because of inefficient energy transfer between organisms and metabolic processes, energy is lost at every trophic level. Approximately 10% of the energy at one trophic level is typically transferred to the next level, and this energy loss results in less energy being available for the consumers at the next trophic level. At each trophic level as you move upward, biomass declines by around 90%.
There are fewer individuals and less diversity in this region of the food chain at the highest trophic levels due to the poor energy availability and low biomass of top consumers.
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the nutritive tissue of the seeds of angiosperms is ________, while the nutritive tissue in the seed of a gymnosperm is______.
Angiosperm seeds have triploid nutritive tissue, whereas gymnosperm seeds have haploid nutritive tissue.
The nutritive tissue of the seeds of angiosperms is the endosperm, while the nutritive tissue in the seed of a gymnosperm is usually the female gametophyte, also known as the megagametophyte or the "nucleus" of the ovule.
In angiosperms, the endosperm is formed after fertilization and provides nutrients for the developing embryo, which will eventually grow into a new plant. In some species, such as corn and wheat, the endosperm is part of the seed that is harvested for food.
In gymnosperms, the female gametophyte is formed before fertilization and serves as a source of nutrients for the developing embryo. It is typically smaller than the endosperm of angiosperms and is not as important for food production.
The complete question is:-
The nutritive tissue of the seeds of angiosperms is ________, while the nutritive tissue in the seed of a gymnosperm is______.
A. diploid, haploid
B. triploid, diploid
C. haploid, diploid
D. triploid, haploid
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Which equation best represents photosynthesis in plants?
d. The molecular formula for photosynthesis is C6H12O6 + 6O2: 6CO2 + 6H2O.
Phototrophs transform chemical energy into light through a process called photosynthesis, which is then used to power cellular processes. Inside the form of sugars, that are made from carbon dioxide and water, the oxidative phosphorylation is kept in reserve. Commonly used notation for photosynthesis is: 6CO2 + 6H2O C6H12O6 + 6O2. This indicates that the reagents, six carbon dioxide molecules & six molecules of water, are transformed into a sugar molecule or six oxygen molecules, the products, by light energy being absorbed via chlorophyll (implied by the arrow). Carbon dioxide + water —> glucose + oxygen —> cellular respiration is a straightforward word equation that may be used to explain the process of photosynthesis: C6H12O6 + 6O2 6CO2 + 6H2O. 6 CO2 + 6 H2O = C6H12O6 + 6 O in photosynthesis.
(Which of the following equations represents photosynthesis?
a. 6H2O + 6O2 → C6H12O6 + 6CO2
b. C6H12O6 + 6O2 → 6CO2 + 6H2O
c. 6CO2 + 6H2O → C6H12O6 + 6O2
d. 6CO2 + 6O2 → C6H12O6 + 6H2O
e. C6H12O6 + 6CO2 → 6O2 + 6H2O)
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Members of which bacterial phylum share a unique morphology?a. Spirochaetes
b. Firmicutes
c. Chlamydias
d. Cyanobacteria
Spirochaetes, which have a unique corkscrew shape, this members of bacterial phylum share a unique morphology.
They are gram negative bacteria with helical coiled shaped cells, they are also motile and are generally in watery environment.
They are bacteria, which are pathogens and cause diseases like as syphilis, yaws, Lyme disease, and relapsing fever.
spirochaetes comes under the type of bacteria within the phylum Spirochetes
The shape is like that because of endoflagella and axial filament that gives the spirochete its unique spiral/twisting
The axial filament present attaches to an opposite end which curls around the body of the cells and then which is enclosed by an envelope
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Which statement describes plant-like protists?
Answer:
Algae are plant-like protists
Explanation:
Plant-like protists are called algae. They include single-celled diatoms and multicellular seaweed. Like plants, algae contain chlorophyll and make food by photosynthesis. Types of algae include red and green algae, euglenids, and dinoflagellates.
nerve roots that carry sympathetic outflow exit the central nervous system in which anatomical regions?
In the grey matter of the spinal cord, between segments T-1 and L-3, are the intermediolateral horns where sympathetic nerve fibers are born.
What purpose do sympathetic fibers fulfill?
The sympathetic nerves, sometimes referred to as "C fibre" or "small fibre" nerves, are grouped together in small clusters outside the spinal cord and are called ganglia. The remaining nerves are not necessary for the ganglia to function properly (automatically).
Why is it required to have sympathetic nerve fibers?
Both reflex and localized changes to the circulatory system are controlled by the sympathetic nervous system, a component of the nervous system (such as sweating in reaction to a rise in body temperature).
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