afferent signals flow inward to the central nervous system from sensors in the periphery, while efferent signals flow outward from the central nervous system to the periphery.
What is the reflex arc?The reflex arc refers to the sequence of events since the body receives external stimuli until it reacts to it.
In general terms,
1. a stimulus of varying nature reaches the body,
2. the peripheric nervous system -PNS- receives the stimulus and sends this information to the central nervous system -CNS-.
3. The CNS processes the information and sends another signal as a response to the stimulus.
This mechanism is known as the reflex arc, and it is composed of five elements,
- Receptors,
- Three types of neurons,
Afferent or sensorial neuronsInterneuronsEfferent or motor neurons- Effectors.
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Please help!!! 50 points!! If you're not going to actually answer, please don't say anything at all. The question is in the picture.
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Conclusion Questions
Use this information to help you answer the following questions:
The original population’s actual genotype frequencies were: SS – 0.9025, Ss – 0.095, ss – 0.0025.
Is the current population in Hardy-Weinberg equilibrium? Yes or No
Is the current population evolving? Yes or No
If the current population is evolving, what type of effect is responsible for genetic drift?
Answer:
Bottle effect
If right please make brainleist for others to learn from this answer thanks!
Explanation:
Activity 2.2 comparing the two body waves
Answer:
compare two body wave
Explanation:
compare one on one body wave
what happens if u lose brain cells
Answer:
If you actually began losing brain cells then you could begin to have difficulties with motor and other skills. It may affect your nervous system, or pretty much anything else in your body depending on which ones you lose, meaning that your body may stop functioning properly. You may lose your ability to remember things or perform everyday tasks. It is true that some neurons die as people age because of the waste they accumulate that causes them to lose their function and degenerate. This can affect some elderly people by appearing as conditions like Alzheimer's, Dementia, or Parkinson's. While this is a natural event, some injuries or damage to the brain due to accidents, or the use of substances, cause destruction or deterioration in younger, healthier brains.
While washing her hair, Olivia noticed that she was losing a lot of hair. She visited a clinic, and the physician reassured her that her hair would grow back. How do you think Olivia’s hair will grow back?
Answer:
The right option is; The hair will grow back by undergoing meiosis. Meiosis is a type of cell division in which the number of parental chromosome is reduced by half, and there is formation of four haploid daughter cells that are genetically distinct from the parent cell that produced them. Meiosis only occurs when the cell needs to reproduce and it occurs in all eukaryotic, se,xually-reproducing animals and plants.
Explanation:
What is the role of oysters as a sustainable food source?
A: Oysters filter 50 gallons of ocean water a day
B: Zero inputs are needed to grow oyster populations.
C: Oysters reducing ocean acidity by removing nitrogen.
D: Shellfish sequester more carbon than land-based plants.
Answer:
The answer is B: Zero inputs are needed to grow oyster populations.
Explanation:
I took the test and got it correct
WHOEVER RESPONDS FIRST WILL BE MARKED BEST.
A student grew flowering plants next to one another in the school greenhouse. Some of the plants had yellow flowers, while some had white flowers. When these plants produced seeds, the student planted them. All the new plants that sprouted from the seeds had yellow flowers.
Which of the following best explains why the new plants only had yellow flowers?
A. None of the seeds from the white plants sprouted.
B. The new plants inherited dominant genes for yellow flower color.
C. The soil the plants were in caused the flowers to turn yellow.
D. The new plants received more sunlight than the parent plants.
Answer:
B. is the answer.
Yellow(Yy) is a dominant allele, and although white(ww) is inherited from the parent gene, Yy, white is a recessive gene. That means it is most unlikely to be visible through phenotype(term for visible characteristics).
What do sea squirts ,lampreys ,and amphibians have in common ?
What do sea squirts, lampreys, and amphibians have in common?
They all go through metamorphosis from larva to adult
Compare and contrast Mendel's laws: Law of Dominance, Law of Segregation, and the Law of Independent Assortment
Answer:
The Law of Dominance states that the dominant allele completely masks the presence of a recessive allele. The law of segregation states that the two alleles for each trait separate during the formation of gametes and that during the formation of new zygotes, the alleles will combine at random with other alleles. A parent gives only one allele to make a gene. The law of independent assortment says that the allele that a gene receives first has no bearing on the allele it will receive second.
Explanation:
What does biodiesel produce in higher amounts? biodiesel produces higher amounts of .
Biodiesel produces greater amounts of benefits in its use than fossil fuels.
Is biofuel better than fossil fuels?Burning biodiesel generates 98% less sulfur, which is responsible for acid rain and respiratory problems, 78% less greenhouse gases and 50% less particulate matter (black smoke), which is also responsible for respiratory problems.
In addition, biodiesel has a cetane number equivalent to diesel (same detonating or self-igniting effect), has an average oxygen content of around 11% and has a higher flash point than conventional diesel.
With this information, we can conclude that biodiesel produces greater amounts of benefits in its use than fossil fuels.
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Answer:
nitrous oxide
Explanation:
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THANK YOU IF YOU DO HELP
Researchers in Tokyo recently discovered that a layer of dead bacteria can protect living bacteria beneath it for up to eight years. These bacteria beneath the protective layer of dead cells are resistant to radiation, desiccation, and lack of nutrition. These protected cells can even travel long distances in a vacuum without being killed. What idea for the origin of life is BEST supported by the description here? A) panspermia B) abiogenesis C) primordial soup formation D) formation of life at hydrothermal vent locations
Answer:
A biogenesis
Explanation:
A biogenesis is the idea that life has originated from small, single celled organic matter (such as bacteria). All of the other theories are less relavant to the topic.
Discuss what is in air pollution means
Air pollution is a mixture of solid particles and gases in the air. Car emissions, chemicals from factories, dust, pollen and mold spores may be suspended as particles. Ozone, a gas, is a major part of air pollution in cities.
Which is a structure that directs the cell's activities?
nucleus
Golgi apparatus
ribosome
mitochondrion
What genetic material is made during the process of transcription? select all that apply.
Answer:
RNA
Explanation:
Transcription is the process in which RNA is made with the help of DNA
Which form of cell division results in an enlarged germ cell pool?.
Mitosis form of cell division marks in an enlarged germ cell pool, Mitosis is a procedure where a single cell splits into two identical daughter cells (cell division).
What is mitosis and meiosis?There are two kinds of cell division: mitosis and meiosis. Most of the time when people refer to “cell division,” they mean mitosis, the procedure of making new body cells.
Meiosis is the kind of cell division that creates egg and sperm cells. Mitosis is a actual procedure for life.
Thus, Mitosis form of cell division marks in an enlarged germ cell pool, Mitosis is a procedure where a single cell divides into two same daughter cells.
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In a car accident, Jane suffered a chest injury that resulted in impaired breathing and respiratory acidosis. How will her body compensate for this imbalance?
Her body will compensate for this imbalance, trying to get more oxygen from the environment, making her breathe harder for a balance between carbon dioxide and oxygen in the bloodstream.
What is respiratory acidosis?When breathing is deficient, which can lead to hypoventilation, the transfer of CO2 to the outside is reduced and its concentration increases in the blood, decreasing blood pH. if a picture of acidosis.
With this information, we can conclude that her body will compensate for this imbalance, trying to get more oxygen from the environment, making her breathe harder for a balance between carbon dioxide and oxygen in the bloodstream.
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What are 2 controlled variables in this science experiment? If you answer something that makes sense, I'll give you brainliest!
Answer:
The amounts of the earth materials, and the height of the box on the ramp.
Explanation:
Hope it assists!
What problems do human population growth cause for the environment?
Answer:
with today's increasing population the environment is getting severely affected as the needs of our increasing at a rapid speed but the sources of the needs are in spite decreasing we need more and more space to build houses setup industries factory out farming and hands we clear our forest is the main reason for almost every adverse effect to the environment. more the population the more the luxuries needed, hence we would be exploiting the environment more and more.
extensive needs but comparatively less resources and hence we start to exploit it in every waywhat is the dif between dirt and soil
Answer:
The distinction major between soil and dirt, however, is that soil has a variety of organic components, ranging from dead leaves to living earthworms, whereas dirt is completely devoid of life and contains no organic components.
Nerves that send messages from the body to the brain are called ________, whereas nerves that carry messages from the brain to the body are called ________.
Over time, species can evolve new traits and behaviors that increase reproductive success. These are called _________.
1 In what way
does Carbon exist in a.water b.air
Answer:
M ake me brainliest pls.and like
Explanation:
Air
A species of rodent lives in a moist forest
climate. Over time, the elimate becomes drier
and more desertlike, Which adaptation would
most likely improve the chances that the rodent
species
could survive as its environment
changes?
A. having dark hair and small ears
B. living above ground in damp areas
C. being able to eat only one type
of berry
D. being able to eat plants that survive in the
changed environment
The possibility that a rodent species may have survived because of a change in its environment that is capable of eating plants that survive the changed environment. So, the correct option is (D).
What is Adaptation?Adaptation is defined as the process by which a species adapts to its environment as a result of natural selection acting on variation over many generations.
Organisms are adapted to their environment in their structure, physiology, and genetics, in their locomotion or dispersal, in their means of defense and attack, in their reproduction and development, and in other respects.
It is described as the ability of an organism to adapt to its environment and change through time, referring to the term "adaptation theory", known as the "survival of the fittest" idea. In this instance, rodents become able to eat plants that survive the changed environment.
Thus, the possibility that a rodent species may have survived because of a change in its environment that is capable of eating plants that survive the changed environment. So, the correct option is (D).
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What is the flow of energy of the following organisms? Birds, plants, bacteria. What is this
called?
Answer:
trophic or energy pyramid
Explanation:
brittanica
How does a change at the molecular level lead to a change in phenotype?.
A change at the molecular level leads to a change in phenotype if the change happens in the DNA of organisms.
What is mutation?It is a change to the genome of organisms.
A change to the DNA sequence of organisms may or may not manifest in the morphological appearance of organisms.
A change to the DNA sequence of organisms means that entire new proteins would be synthesized and only in this way can the phenotype of organisms be altered as a result of a change at the molecular level.
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The outermost structure of the bacteria cell is the __ which comes in contact with the environment
I have two guesses cell wall or capsule, I know its's one of the two but I don't know which one.
Answer:
the answer should be cell wall
In eukaryotic cells, transcription occurs in the _________ while translation occurs in the __________
45
What do vaccines contain?
A: Dead or weakened versions of pathogens
B: Live pathogens
C: Antibiotics
C
D:
Antibodies
Answer:
A
Explanation:
The whole purpose of a vaccine is to expose your body to what the disease would feel like if you actually had it so your body builds up an immunity to the bacteria, virus, etc. Obviously they won't put the disease at its full form in the vaccine because you'll get sick and not build an immunity, so they must put in a weakened version of the disease in the vaccine. That's your answer.
pls help :( will give brainliest if right
Which of the following correctly describes a positive way in which hydrogen fuel cell technology can affect environmental quality or way of life?
a. It can be used to create zero-emission vehicles.
b. It can only be used without combining with other energy resources.
c. It has a low cost and many fueling stations for vehicles.
d. It is easy to store safely and distribute globally.
Answer:
the answer is D:)
Explanation:
it is easy to store safetly and distribute globally.
Good luck on your test!
A person is dehydrated and goes to the hospital. What would happen to the patient’s
red blood cells if they were rehydrated with an IV of distilled water?
a. The blood cells will take up water, swell, and eventually burst.
b. The blood cells will expend ATP for active transport of NaCl into the
cytoplasm.
c. Water will leave the cells, causing them to shrivel and collapse.
d. NaCl will be exported from the red blood cells by facilitated diffusion.
Answer:
Explanation:
I think a, I'm not to sure. Sorry if it is wrong.
A scientific study by a pesticide company claims that a new pesticide for spraying tomatoes is both highly effective and safe. The company claims that while pests are killed, the product is entirely safe to humans. At this point, what can a consumer know for certain about the validity of the company's claims?
A) No pesticide is safe for human consumption, so the claims are not reliable.
B) Additional studies will be the reliability check for the claims.
C) Since the company performed the scientific study it is reliable.
D) The company is not biased because the primary goal of companies is safety.
Answer:
B) Additional studies will be the reliability check for the claims.
At the given point, the consumer should know for certain about the validity of the company's claims a s additional studies will be the reliability check for the claims. The correct option is B.
What is a pesticide?Pesticides are used to control a wide range of pests and disease carriers, including mosquitos, ticks, rats, and mice.
Pesticides can have both acute (short-term) and chronic (long-term) health effects, which can occur months or years after exposure.
A claim is a debatable argument that generally states a fact rather than an opinion.
It focuses on an argument that defines your goal and the scope of your thesis. Its primary goal is to support and prove your main point.
The consumer should know for certain about the validity of the company's claims at this point, as additional studies will be the reliability check for the claims.
Thus, the correct option is B.
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