The reflex arc is the sequence of events since a stimulus reaches the body, until the body reacts to it. The correct order is a, b, d, e, c.
What is the reflex arc?The reflex arc refers to the sequence of events since the body receives an external stimulus until it reacts to it.
In general terms,
A stimulus of varying nature reaches the body. The peripheric nervous system -PNS- receives the stimulus and sends this information to the central nervous system -CNS-. The CNS processes the information and sends another signal as a response to the stimulus.This mechanism is known as the reflex arc.
Five elements compose the reflex arc, which are receptors, three types of neurons, and effectors.
There are three types of neurons involved in the mechanism:
• Afferent or sensorial neurons
• Interneurons
• Efferent or motor neurons
Action:
Ascending branch1) The stimulus reaches the body and is received by the specialized sensory receptors.
2) Information is received by these receptors and converted from stimuli energy (temperature, pressure, light, etc.) to action potential energy.
3) Afferent neurons, placed in the dermis and epidermis, receive information from receptors, react and send the information to the central nervous system as nerve impulses.
Descending branch4) Once the information reaches the central nervous system, it is processed by the interneurons that analyze it before sending a response.
5) Interneurons manage many sensorial signals, evaluate and compare them, and send a motor response.
6) Efferent neurons receive information from the interneurons and are stimulated to carry these new signals from the central nervous system to the cells of the effector organs. The effector organ can be a muscle or a gland.
7) Finally, the target tissue responds to the stimulus as a contraction, if it is a muscle, or as hormones release if it is a gland.
In the exposed example, the corrcet order is
a- A receptor detects a signal.
b- A sensory neuron sends a signal to the spinal cord.
d- A relay neuron sends a signal to a motor neuron.
e- A muscle receives a signal to contract.
c- A bone moves.
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Why does the Cenozoic Era have epochs, but the Mesozoic and Paleozoic Eras do
not?
\The common use of epochs during the Cenozoic helps paleontologists better organize and group the many significant events that occurred during this comparatively short interval of time. Knowledge of this era is more detailed than any other era because of the relatively young, well-preserved rocks associated with it.
The research done by Soto, Sonnenschein, and Hunt reveals how chemicals could affect the production of gametes, thereby affecting the passage of genetic traits down from one generation to the next. Which of the following mechanisms are responsible for the generation of genetically diverse offspring?
a. independent assortment of chromosomes during meiosis I
b. independent assortment of chromosomes during meiosis II
c. genetic recombination
d. crossing over
Answer:
a,c,d
Explanation:
Crossing over occcur when genetic material is exchanged between homologous chromosome this leads to formation of new genes that creates diversity.
homologous chromosome assort imdependently i.e seperate from each other leading to the formation of an entirely new gene that creates diversity.
Genetic recombination when gene recombines together to produce a unique type. It occurs between different species.
If an alien astronomer in a distant galaxy looks at all the galaxies it can see, it will observe that Select one: a. other galaxies are moving away from it. b. half of the galaxies are moving away and half of them are moving toward it. c. other galaxies are stationary. d. other galaxies are moving toward it. Clear my choice
If an alien astronomer in a distant galaxy looks at all the galaxies it can see, it will observe that other galaxies are moving away from it. It will observe that the galaxies present in the universe are moving away from the galaxies.
What is the name of our galaxy ?The name of our galaxy is milky way.
Through the astronomical spectra displaying the patterns of absorption and emission spectra lines it is producing the different wavelengths that are producing different wavelengths. If the source is moving away from the lines that is showing towards the red end that is the red shift.
The continued gravitational force that is present in the galaxies are together collected are the gravitational forces that are mutually coming together in order to bring the galaxies together.
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Which are three requirements for forming petroleum?
Answer:
i think it is oxygen, heat, steam heat.
Explanation:
Which statement best summarizes the data?
O A. The croaking males decided to stop croaking to avoid the bats.
O B. A new mutation made the croaking males stop croaking.
O c. The croaking males adapted to the presence of the predatory
bats.
O D. Noncroaking males were selected for in the site with predatory
bats.
Answer: the answer is D my mna
Asthma is a respiratory disorder that can cause the airways to temporarily constrict, or get narrower. Which function of the respiratory system is most affected by the narrowing of the airways? A. water balance B. air filtration C. heat balance D. gas exchange
Answer:
Answer is D.
Explanation:
Asthma is a chronic inflammation that affects the airways, directly affecting the gas exchange of oxygen and carbon dioxide with the blood.
What is asthma?It is a chronic disease of the lungs that inflames and narrows the airways.
Since this disease causes the airways to become inflamed and swollen, it reduces the amount of air that can move in and out of the lungs (gas exchange).
Therefore, we can conclude that asthma is a chronic inflammation that affects the airways, directly affecting the gas exchange of oxygen and carbon dioxide with the blood.
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Vocalizations enable primates to Group of answer choices communicate as humans do. name resources and monitor the social group. communicate, but only between members of the same hierarchy. solve distressing situations among primate groups.
Answer:
name resources and monitor the social group.
Explanation:
Vocalisation is use as a medium of communication in primates. It is an important feature of primates social life. It is use to facilitate social interaction among them selves and this help to establish and endorse relationship that lead to reproductive success.
Vocalisation is use to name resources and monitor the social group because it is use as medium of communication where information is ttransfer among the primates and it's can be use monitor the social group through interaction between members of the group by establishing social bonds and increasing reproductive success.
Why is a protozoan considered animal-like? It is a heterotroph. It is multicellular. It has a flagellum. It has a cell wall.
Answer:
The answer was A
It's a Heterotroph
It's means they eat thing outside of themselves instead of producing their own food.
I believe it's correct
Explanation:
Answer:
A. Heterotroph
Explanation:
I took the test and got a 90%.
In general which group of stars have the Brightest Luminosity? Select one: a. Supergiants b. Giants c. Main sequence d. White dwarfs
Answer:
Hello!
I think your answer should be A. SUPERGIANTS!
Explanation:
HOPE THIS HELPS!
itsMATT04
Answer:
A
Explanation:
got it correct
In the diagram below, which part of the human brain handles processes such
as thinking, hearing, and movement?
A. B only
B. Both A and C
C. Both B and C
D. A only
Answer:
c.both b and c
Explanation:
The cerebrum handle processes such as thinking, hearing, and movement in the human brain. The correct option is D: A only.
In the diagram,
A: Cerebrum
B: Cerebellum
C: Brain stem.
The cerebrum is the largest and most highly developed part of the human brain. It is responsible for a wide range of higher cognitive functions, including conscious thought, perception, memory, language, problem-solving, decision-making, and voluntary movement.
Key functions of the cerebrum:
Sensory Perception: The cerebrum receives and processes sensory information.Motor Control: The cerebrum is involved in voluntary muscle control and movement planning.Language and Communication: Various regions of the cerebrum are involved in language processing and production.Emotion and Behavior: The cerebrum contributes to emotional processing and regulation.Thus, the correct option is D.
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25 points hurry plz thank you “What is the effect of the type of food available on the frequency of different types of bird beaks?” Hypothesis: If the type of food available changes, then…____________ …because…___________
Answer:
Explanation:
...then the bird beak changes because the bird beaks are the most vital physical feature that allows birds to catch and devous its prey.
Answer:
then... the frequency of different types of bird beaks will change, because... birds with beaks that are more suited to the available food are more adapted and will be more successful over time.
Explanation:
This is linked with natural selection.
If the type of the food available changes, then the frequency of different types of bird beaks will change, because birds with beaks that are more suited to the available food are more adapted and will be more successful over time.
Evolution of beak types will be a result of the birds adapting and changing their food habits. Natural selection is the process where organisms adapt and change.
Which of the following wavelengths of light are able to penetrate the Earth’s atmosphere and best viewed through a reflecting telescope?a. Radio Waves b. Infrared Waves c. Visible Light Wave d. Ultraviolet Light Waves Clear my choice
Answer:
c. Visible Light Wave
Explanation:
The electromagnetic radiation spectrum can be divided into seven types of wavelengths of light, which are classified according to the decrease in wavelength and the increase in energy and frequency: 1-radio waves, 2-microwaves, 3-infrared light, 4-visible light, 5-ultraviolet, 6-X rays and 7-gamma rays. The atmosphere is not permissible to all types of wavelengths of light, thereby acting as a natural barrier that protects against harmful radiation waves. All the range of visible light can penetrate the Earth's atmosphere, while most radio waves can penetrate through this barrier. Finally, only some wavelengths of infrared and ultraviolet radiation can pass through the atmosphere.
Answer:
yall stoopid its radio waves :D
Explanation:
Please help meeee!!!!
A student asks, "How does exercise affect an individual’s heart rate?" Which step can the student complete to best help her answer the question through scientific inquiry? She can keep the results to herself. She can conduct background research. She can ask friends for their opinions. She can observe people who do not exercise.
I will mark you
Answer:
b
Explanation:
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Mention five similarities between art and philosophy.
Please this is URGENT!! I'll thank u so much if u help me.
Answer:
The five major similarities between the given instances are described below.
Explanation:
Art seems to be about men's job of making things or even just meanings. Philosophy should be about what life, reality, and wisdom represent.Philosophy couldn't be incorrect, just as art can't be that bad. That is an incoherent term. The argument that theory goes around through communities or never comes to a satisfactory conclusion has always been the main topic including its argument. That's only because philosophy becomes interpreted as if it were science rather than art.Art and Philosophy will say, I'm making this. Those would be the ideal illustration of the intelligence of man.Art seems to be an undertaking that aims at creating something aesthetically intriguing and that would be valued for its attractiveness or expressive strength. Philosophy approaches art from such a situational-perspective, i.e., attempting to ascertain whatever was rather than concentrating on a single piece of art or observing general trends.Hey I just got a new orchid what should I name it?
Answer:
Hope
Explanation:
It's a beautiful name
How many core biosafety work practices (or do's and don'ts) are there, according to the National Research Council’s book entitled, Prudent Practices for the Handling and Disposal of Infectious Materials?
Answer:
seven
Explanation:
There are seven biosafety practices which should be followed during the Handling and Disposal of Infectious Materials. These biosafety practices were made by the scientists in order to reduce the chances of contamination of worker who deals with the handling and disposal of Infectious or toxic materials. If these seven biosafety practices were not followed by the workers so there is high chances of infection which leads to their death.
In four to eight sentences, trace the flow of carbohydrate macromolecules through a rain forest ecosystem. State how the marcomolecules are produced, how they are passed along, and what they are eventually used for. In your answer, give specific examples of macromolecules.
Answer:
Carbohydrate is a big source of energy for all living organism on this planet.
Explanation:
The carbohydrate which is a macro-molecule is produced by the producer such as trees and shrubs etc in the process of photosynthesis. These carbohydrates transfer to the primary consumer such as monkey who eat these plants. When the secondary consumer such as jaguar eat these primary consumer, this carbohydrate again transfer from one organism to another organism. This carbohydrate is a source of energy which is broken down in the stomach into glucose and this glucose is absorbed by the cells and releases energy by mitochondria in the form of ATP. This energy is used in various activities such as walking, running and breathing etc. Carbohydrate, proteins and fats are the examples of macro-molecules.
Answer:
hi
Explanation:
Using your answers from Part 2, trace the path that energy flows in the ecosystem. What evidence does this give you about where energy in an ecosystem comes from?
match the boinomial of some common level local organisams from a two coulmn list on the basis of generic and specific name
Explanation:
human being : Homo sapiens
dog: Canis familiaris
house fly: Musca domesticated
domestic cat: Felis domesticus
maize: Zea Mays
Bean: Phaseolus vulgaris
lion : Panthera leo
honey bee: Apis mellifera
Exotoxins are Question 8 options: only released after a cell is damaged or lysed. proteins. lipopolysaccharides. secretions that always target nervous tissue. antiphagocytic factors.
Answer:
The correct answer is proteins.
Explanation:
The exotoxins are proteinaceous in nature, they are the toxins, which are discharged from a living bacterium and are also discharged at the time of bacterial lysis. The exotoxins harm humans, however, not all exotoxins generated harm human beings.
Some are even created to perform an essential function in bacteria physiology like regulating functions of the cell, resisting bacteriophages, or quorum sensing. The three prime kinds of exotoxins are type I exotoxins or superantigens, type II toxins or exotoxins that damage host cell membranes, and type III toxins or A-B toxins that interfere with the function of the host cell.
A discrete, locally folded unit of protein tertiary structure usually having a specific function best describes __________. A discrete, locally folded unit of protein tertiary structure usually having a specific function best describes __________. a domain a motif a complex quaternary structure
Answer:
a domain
Explanation:
The domains are the basic units of the proteins, they are polypeptide segments (about 30 -200 amino acids) that have a defined tertiary structure and play specific biological functions including, for example, enzymatic and structural activities. Protein domains are evolutionary conserved, it means that these polypeptide segments can be found in phylogenetically related species and share sequence homology. Examples of protein domains include the zinc finger and the helix-turn-helix domains which are involved in protein-DNA interactions of transcription factors.
Ocular albinism is an X-linked recessive trait that causes a lack of pigmentation in the eyes.
A father with ocular albinism and a mother without the trait have a daughter.
What is the percentage chance that the daughter will have ocular albinism?
Answer:
It occurs in about 1 out of 17,000 people. The chances are low that the daughter will have ocular albinism. I can't calculate the exact amount.
Explanation:
Question:
Ocular albinism is an X-linked recessive trait that causes a lack of pigmentation in the eyes.
A father with ocular albinism and mother without the trait have a daughter.
What is the percent chance that the daughter will have ocular albinism?
Answer:
CORRECT (SELECTED)
0%.
Explanation:
In order for a daughter to be affected, she must be Xg Xg There is a 0 in 4 chance that they will produce a child with this genotype.
When extra nutrients added to crops wash into
waterways and oceans, this is called:
-agricultural runoff
-dead zoning
-deforestation
-erosion
Answer:
I think, dead zoning is answer.Explanation:
Hope it helps you.Answer:
dead zoning
Explanation:
dead zones are formed when excess nutrients wash into bodies of water (this is known as eutrophication.)
because of excess nutrients organisms can't survive, that's why those areas are regarded as dead zones.
Which of the following pairs of organisms is most closely related?
A. Cat and amoeba
B. Kangaroo and salmon
C. Lizard and sponge
D. Cat and kangaroo
Answer:
D
Explanation:
They are both mammals.
Where in the digestive system is food stored, churned, and mixed?
A) stomach
B) esophagus
C) large intestine
D) small intestine
Answer:
A stomach
Explanation:
Acids, which are in the stomach help digest food by making it the place where food is churned, stored, and mixed.
Which substance's cycle can be disrupted by the addition of fertilizer and can result in eutrophication?
nitrogen
water
oxygen
carbon
Answer:
Oxygen
Explanation:
When excessive minerals(N.P.K) and nutrient are released into the body of water from leaching and other sources,(detergents,fertilizers application,sewage etc )which leads to corresponding increase in the population of algae(algae boom)the condition is called Eutrophication.
This disrupts the oxygen cycle because,the increased algae population(algae boom) makes use of available oxygen in the habitat for respiration.With continue supply of the nutrients,the population continue to rise.The competition for oxygen with other fauna leads to shortage of available oxygen,and therefore death of these fauna,and later of the algae.
The decomposing bacteria,also used the fragment pf oxygen to decompose the algae and other dead fauna,further reducing the oxygen levels of the water,with increase in water pollution.
Answer:
nitrogen because...
Explanation:
When nitrogen and phosphorus from fertilizer are carried in runoff to lakes and oceans, they can cause eutrophication, the overgrowth of algae.
If a person has type B blood, which statement describes the antibodies present in his or her blood?
Only anti-A antibodies are present.
Which statement does the fossil record and DNA
evidence support?
o Chimpanzees and humans do not share any
common ancestors.
O Chimpanzees are cousins to humans.
O Chimpanzees are the ancestors of modern
humans.
Answer:
B) Chimpanzees are cousins to humans
Explanation:
Just did it, Have a good day!
Answer:
Explanation:The correct answers on edg
Type your response in the box.
A student draws this model to show how humans evolved from ancestral primates. What are the pros and cons of
this model in regard to the theory of evolution? Explain how you'd make it more accurate. To create a scientifically
credible answer, use a credible website to research human evolution.
Answer and explanation:
The model designed by the student is useful to explain in a simple way the question of the evolution of the homo gender (our gender), mainly in basic education, but it may seem inconsistent at higher educational levels.
Humans and chimpanzees, according to the theory of evolution, descend from a relatively recent (about 7 million years) common ancestor.
These same species, as well as lemurs, baboons and all other primate species, share an ancestor who lived longer. Likewise, there is an even older ancestor that originated primates, bats, whales and all other groups of mammals .
The fact that chimpanzees have a DNA very similar to ours (about 98.5% similarity between code sequences) is because the successive evolutions from this common ancestor were not very drastic, besides the fact that they are in a branch more close to ours from the moment of separation of evolutionary lineages.
The current taxonomic system that taxonomists use (and that we are using during our Summer session) follows a taxonomic scheme that recognizes _____ (a number) Kingdoms in the Domain Eukarya (also spelled Eucarya).
Answer:
The correct answer is - 4 kingdoms.
Explanation:
According to the current classification or taxonomic system used by many taxonomists is the modern Linnean classification system and according to this, there are four kingdoms Protista, Fungi, Plantae, and Animalia in the domain eukarya. there are two more kingdoms in prokaryotes that are monera and archaebacteria
Thus, the correct answer is - 4 kingdoms.
How would you describe the effect of a 1°C increase of temperature on the biodiversity of the habitat in terms of number of populations and number of individuals in the populations? Use evidence from your graph and table to support your answer.
Answer:
Population of some organisms increases and some decreases with the increase in temperature.
Explanation:
The population of certain species such as Nassuar grouper, Spotlight parrotfish and Queen angelfish increases with the increase in temperature while some species such as yellow tail snapper, sponges and algae decreased in population with the increases in temperature. This is because some species needs high temperature so increase in temperature increases the population while some species needs low temperature so high temperature kill them and population is decreased.
Answer:
The population of some creatures increases while the population of others falls as the temperature rises. Certain species, such as Nassuar grouper, Spotlight parrotfish, and Queen angelfish, see an increase in population as the temperature rises, whereas others, such as yellow tail snapper, sponges, and algae, see a fall in population as the temperature rises. This is because some species require high temperatures, so a rise in temperature increases their number, but others require low temperatures, so an increase in temperature kills them and decreases their population.
Explanation: