Can someone please answer these 3 for me

Can Someone Please Answer These 3 For Me

Answers

Answer 1

Answer:

It is positive feedback


Related Questions

pleasseeee help...........

Answers

Answer:  

The theory of plate tectonics states that the Earth's solid outer crust, the lithosphere, is separated into plates that move over the asthenosphere, the molten upper portion of the mantle. Oceanic and continental plates come together, spread apart, and interact at boundaries all over the planet. It was proposed by Alfred Wegener.

Explanation:

Lateralization refers to the
a. number of neurons produced during prenatal development.
b. organizational structure of the peripheral nervous system.
c. specialization of the two hemispheres of the cerebral cortex.
d. plasticity of the spinal cord.

Answers

C. Specialization of the two hemispheres of the cerebral cortex

Explain the contribution of antigenic determinant in false negative and false positive test

Answers

Answer:

The contribution of the antigenic determinant is given below:

Explanation:

Antigenic determinant or epitope is the part of the antigen that is recognized by the immune cells or antibodies such as the B- cells by binding to these cells and evokes the response in the host. The antibodies bind to the epitope segments only not to the entire antigen protein.

A false-positive test is a test where the result suggests that an individual has a specific condition but in reality not having such condition. opposite in the false-negative So, the antigenic determinant binds to the specific antibodies and shows wide significance to reduce the false-negative or false-positive.

which 3 reactions form atp?

Answers

Answer:

Answer below

Explanation:

The eight steps of the citric acid cycle are a series of redox, dehydration, hydration, and decarboxylation reactions. Each turn of the cycle forms one GTP or ATP as well as three NADH molecules and one FADH2 molecule, which will be used in further steps of cellular respiration to produce ATP for the cell.

Which line points to the myelin sheath?

Answers

4.

Myelin Sheath is an insulator on the axon

Hope that helps! :)

Answer:D

Explanation:

When a patient comes to a hospital with severe dehydration, doctors will give
them an IV filled with a salt-water solution called saline, which is isotonic with
the body's blood cells.
Why is the patient not given pure water?

Answers

Answer:

The red blood cells could burst.

Explanation:

If they are given pure water, the IV fluid will be hypotonic to the blood cells. That means water will end the red blood cells by osmosis, from a high concentration outside to a lower concentration inside.

This will result in the red blood cells becoming swollen and even potential  bursting.

Which of the following statements is NOT true regarding the nebular hypothesis?

Question 1 options:

A) A large cloud of hydrogen gas and dust begins to collapse under its own gravity.


B) The collapsing cloud begins to spin.


C) The spinning, collapsing cloud expands into a ball.

D) As the material coalesces in the center, it becomes dense, compresses, and heats up.

Answers

A

A large cloud of hydrogen gas and dust begins to collapse under its own gravity.

The incorrect option is "a large cloud of hydrogen gas and dust begins to collapse under its own gravity"

What is the nebular hypothesis?The most widely accepted theory in cosmogony to explain how the Solar System formed and evolved is the nebular hypothesis. It implies that gas and dust orbiting the Sun are what created the Solar System. The nebular theory proposes that a rotating cloud of material called a nebula, composed primarily of light components, flattened into a protoplanetary disk and developed into a solar system made up of a star and circling planets.Immanuel Kant developed the hypothesis.In 1900, Chamberlain and Moultan hypothesized that a wandering star's approach to the sun caused a cigar-shaped extension to separate from the solar surface.

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Besides plants and insects, what else would the student need in the ecosystem? Why?

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Air, water , because without air we can’t live and without water too because our bodies need air and water

What is the structure shown in the figure?

Nucleic Acids

Carbohydrates

Proteins

Lipids

Answers

Answer:

lipids

Explanation:

The two main zones within the A climate are

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Answer:

The Earth has three main climate zones: tropical, temperate, and polar. The climate region near the equator with warm air masses is known as tropical. In the tropical zone, the average temperature in the coldest month is 18 °C.

The climate has three main zones such as tropical, temperate, and polar.

What are Earth's climatic zone?

A climate zone refers to a condition by observing different factors like temperature, humidity, precipitation, season and natural vegetation of an area.

Earth's climate zones is surrounded by the horizontal belts of different climates such as tropical, dry, temperate, continental, and polar zones.

Firstly, Tropical climate zones which present near the Equator of earth and have high temperatures and high precipitation, while Dry or arid climate zones shows high temperatures  and little annual precipitation.

Similarly temperate climate zone observed  Earth’s middle latitudes and shows wider temperature and seasonal variations are more distinct.

Continental climate zone observed in mid-latitudes, shows swing of  temperatures  from cold in winter to warmer, where as polar climate zones shows harsh climate which cannot to support vegetation.

Hence, major zones are tropical, temperate, and polar.

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Which of these choices is a risk of replacing a coal-burning power plant with
a nuclear power plant?
A. Improper storage of radioactive waste
B. Reduced greenhouse gas emissions
C. Improved respiratory health of residents
OD. New jobs created in the nuclear power plant

Answers

A) The reason why if you do not properly handle the waste you’ll have chemical and radioactive waste going into your water supply or grounds and slowly might effect your heath or it’ll effect it quickly.

The statement that is a risk of replacing a coal-burning power plant with a nuclear power plant is improper storage of radioactive waste.

What is nuclear power plant?

Nuclear power plant is a power plant that obtains its primary energy from the heat generated in nuclear reactions.

Nuclear source of energy is a renewable source while a coal source of energy is nonrenewable.

However, nuclear radiation releases radioactive particles indiscriminately into the environment when used.

Therefore, the statement that is a risk of replacing a coal-burning power plant with a nuclear power plant is improper storage of radioactive waste.

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What are the functions of centrioles

Answers

Answer:

Centriol play a major role in cell division (mitosis)

Explanation:

Help coordinate cell division (only in animal cells)

what is Janus green b​

Answers

Answer:

Janus Green B is a basic dye and vital stain used in histology.

Explanation:

10 POINTS PLZ ANSWERRRR
Which of the following best describes non-matter?
A substance that is either a solid, liquid, or gas
Any material that has a length and a volume Anything with no mass that takes up no
space Something that takes the shape of a container​

Answers

Answer:

c is the answer in my opinion .

Explanation:

Its because non matter has neither volume nor mass and no space also.

Answer:

Matter is something that takes up space so the answer is Anything that does not take up space

Explanation:

In the diagram of the nitrogen cycle, which number represents nitrogen
2 points
gas?
Terrestrial
cycling
Animals
68
7
Decomposition
2
Uptake
of amino
acids
ΝΗ,
4
оо

Answers

Answer:

The illustration below shows translation in progress. The orange structure represents a ribosome and the dark grey ones labelled A and

B represent 2 tRNA. Fill in the blanks in the next sentence and answer the short essay question that follows.

A

5'-AGGGACUAUGAACAUUUACCAACUACGGUGGCGUUAGAC

Explanation:

A __________________ is a place holder or object where you can store a value or piece of data named by you

Calculate the rate of photosynthesis (mm/hr) for Elodea if when measuring net photosynthesis, the water level moved up 3 mm from the initial level in 20 min, and when measuring cellular respiration it took 15 minutes for the water level to move down 1 mm.

Answers

Answer:

The rate of photosynthesis is 13 mm/hr

Explanation:

The rate of net photosynthesis is given by;

rate of net photosynthesis = 3 mm / 20 min = 1.5 mm/ 10 min

The rate of  cellular respiration is given by;

rate of cellular respiration = 1 mm / 15 min = 0.667 mm / 10 min

The rate of photosynthesis is given by;

rate of photosynthesis = rate of net photosynthesis + rate of cellular respiration

rate of photosynthesis = 1.5 mm/ 10 min + 0.667 mm / 10 min

rate of photosynthesis =2.167 mm/ 10 min

[tex]rate \ of \ photosynthesis \ in \ mm/hr = \frac{2.167 \ mm}{10 \ min} *\frac{60 \ min}{1 \ hr} = 13 \ mm/hr[/tex]

Therefore, the rate of photosynthesis is 13 mm/hr

What caused Antarctica’s climate to change from a more temperate climate to its current climate?
A)
isolation from the other continents
B)
El Niño
C)
being surrounded by ocean
D)
volcanic eruptions
E)
all of the above

Answers

Answer:

E

Explanation:

Answer:

E) All of the above

Explanation:

Got it right on the test

You have been looking at meiosis beginning with a diploid cell that has the genotype AaSs. The alleles in the haploid gametes produced by meiosis are

Answers

Answer:

AS, As, aS, as

Explanation:

Meiosis is the cell division that involves the production of daughter cells or gametes with a reduced number of chromosomes. i.e. diploid (2n) - haploid (n).

According to Gregor Mendel in his law of Segregation, the alleles of a gene will separate into gametes in such a way that only one allele will be present in each sex cell. Hence, in this diploid cell with genotype AaSs, the alleles will separate into the haploid cell in the following genotype proportion:

AS, As, aS, and as

1. Which of the following does not absorb moisture readily ?
a.cotton
b.linen
c.viscose
d.acetate
e.nylon​

Answers

Cotton correct me if I’m wrong

Nylon does not absorb moisture readily.

What is nylon?Nylon is a synthetic fibre."It is made from reacting carbon-based chemicals found in coal and petroleum in a high-pressure, heated environment."It looks somewhat like silk.It is water repellent.

Hence, the correct option is e. nylon.

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why can b blood donate to AB blood?? ​

Answers


People with type AB+ blood are universal recipients because they have no antibodies to A, B or Rh in their blood and can receive red blood cells from a donor of any blood type. Plasma transfusions are matched to avoid A and B antibodies in the transfused plasma that will attack the recipient's red blood cells.

Answer:

Type B contains the B antigen.

This type is relatively rare (second only to AB). It contains the B antigen on its red blood cells, and the A antibody (to attack A antigens) in its plasma

Explanation:

QUESTION 6
Which statement is true about graded potentials?
a. They always produce action potentials.
b. They always depolarize a neuron.
c. They change the voltage of a neuron by different amounts.
od. They are "all-or-none."
Click Save and Submit to save and submit. Click Save All Answers to save all answers.

Answers

The answer is B.I believe

What is the keystone species

Answers

Answer:

a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically

Explanation:

Answer:a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically.

Explanation:

The American Beaver (Castor canadensis) is one example of a keystone species in North America. In any arrangement or community, the “keystone” is considered one of the most vital parts. In a marine ecosystem, or any type of ecosystem, a keystone species is an organism that helps hold the system together.

HEYY YOU GUYS AGAIN. I HAVE A COUPLE OF QUESTIONS I NEED HELP ON. IF YOU CAN, PLEASE HELP ASAP.
which moon phase occurs when the moon is between the earth and the sun??
a. full moon.
b. waxing crescent.
c. new moon.
d. waning crescent.

Answers

Answer:

New Moon

Explanation:

There are eight phases of the Moon, which repeat every 29.5 days. New Moon. A new moon is usually not visible to the naked eye, as only the unlit portion of the Moon is exposed. This phase occurs when the moon is situated directly between the sun and the Earth. A solar eclipse can only occur during this phase. Waxing Crescent

C.New Moon A solar eclipse can only happen at new Moon. A waxing crescent moon is when the moon looks like a crescent and a crescent increases in size from one day to the next

Which organelle makes lipids?

Answers

Answer:

endoplasmic reticulum

Explanation:

The endoplasmic reticulum is an organelle that is responsible for the synthesis of lipids and the modification of proteins.


Peroxisomes


Peroxisomes are metabolic organelles involved in bile acid synthesis, as well as the metabolism of glyoxylate, dicarboxylate, amino acids and lipids

Describe how a rainforest can reach a point when it cannot be restored by secondary ecological succession

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Answer:Although the secondary forest will be low in diversity and poorly developed, the forest cover will be adequate for some species to return (assuming they still exist).  The solution must be based on what is feasible, not overly idealistic, and depends on developing a new conservation policy built on the principle of sustainable use and development of rainforests. Beyond the responsible development of rainforests, efforts to rehabilitate and restore degraded forest lands along with the establishment of protected areas are key to securing rainforests for the long-term benefits they can provide mankind.

Explanation:

i lloke dit up online because i have not did this yet

A very high damaged leads to no restoration of rainforest by secondary ecological succession.

A rainforest can reach a point when it cannot be restored by secondary ecological succession when the large portion of the rainforest is destroyed and most of diversity is vanished. At this time, restoration is impossible due to very high damages.

Ecological resilience is the ability of an ecosystem to be restored through secondary ecological succession after a severe disturbance. Rainforest have a high biodiversity that helps it to resist damage but at a certain limit so we can conclude that very high damaged leads to no restoration of rainforest by secondary ecological succession.

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A dihybrid cross experiment is carried out in pea plants. The traits being observed are flower color and stem length. In the F2 generation, 81 plants have purple flowers and long stems, 27 plants have purple flowers and short stems, 27 plants have white flowers and long stems, and 3 plants have white flowers and short stems.

Which traits are recessive?

A.purple flowers, long stem
B.purple flowers, short stem
C.white flowers, short stem
D.white flowers, long stem

Answers

C white flowers and short stem

Answer:

c

just took test

Explanation:

white flowers, short stem

Why can someone lost at sea die of thirst

Answers

Human kidneys can only make urine that is less salty than salt water. Therefore, to get rid of all the excess salt taken in by drinking seawater, you have to urinate more water than you drank. Eventually, you die of dehydration even as you become thirstier.

Answer:

someone can die at sea from thrist because there is no drinkable water.

Explanation:

You cannot drink the water surrounding you because it is salt water. (not the regular non-salt water we drink) the salt in the ocean water will actually dehydrate you more.

Hope this helps!!

The majority of pesticides do not have a residual effect (i.e., not persistent; lose chemical activity) in the soil.

a) True

b) False

Answers

Answer:

B- False

Explanation:

Pesticides can contaminate soil, water, turf, and other vegetation. In addition to killing insects or weeds, pesticides can be toxic to a host of other organisms including birds, fish, beneficial insects, and non-target plants. Soil can be degraded and the community of organisms living in the soil can be damaged by the misuse or over use of pesticides. Some pesticides are more toxic to soil organisms than others.

Hope this helps!

LIQUID DENSITY COLUMN
-Olive Oil
-Vegetable Oil
please help me with this question thanks:)

Answers

Answer: Vegetable oil

Vegetable oil is the ans

how do mutations affect our communications?​

Answers

Explanation:

When a mutation alters a protein that plays a critical role in the body, it can disrupt normal development or cause a medical condition. A condition caused by mutations in one or more genes is called a genetic disorder. In some cases, gene mutations are so severe that they prevent an embryo from surviving until birth.Over time, a mutation might take place in one of the descendant cells, causing increased activity of a positive cell cycle regulator. The mutation might not cause cancer by itself either, but the offspring of this cell would divide even faster, creating a larger pool of cells in which a third mutation could take place.

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Helppppp plzzzzzzz!1. what are predictions and how can you use them to increase your comprehention? 2. how do you check/revise predictions?3. what is one prediction that can be made before or while reading the story of "the happy prince" or " the story of scarface"? (optional) 36% of what number is 64.8? 5 interesting facts about john d. rockefeller Mia conducted a five hour experiment. She used a liquid solution. The solution decreased by 9/8 ounces every hour for 5 hours. At the end of the experiment, there were 99/8 ounces of the solution remaining. How many ounces of solution did Mia start with? * challenges we will face terraforming Mars How does Lockes reasoning compare with King James Is? Calculate the final volume of a solution prepared by diluting a 4.0 M solution with a volume of 7.0 mL to 0.80 M in milliliters. What is the equation of the line that passes throligh the point (-6, 6) and has aslope of -5/3 Read the excerpt from "Harriet Tubman: A Life of Toil and Triumph." By this time, the word of Harriet Tubmans bravery was beginning to spread. Many well-known people learned of her mission and got on board as well. Writers Ralph Waldo Emerson and Louisa May Alcott helped her, as did Susan B. Anthony. Some even allowed her to use their homes as stations. Meanwhile, Harriets fame also made her a target, and a large reward was offered for her capture and return to Maryland. The beginning of the Civil War in 1861 marked the end of Harriets Railroad work, but she did not retire. Instead, she joined the fight that would soon set all of her people free. At the request of Union leaders, she set out for South Carolina. There she nursed slaves who had been left behind when their owners fled Northern forces. Why was a reward offered for Tubmans capture?A. because she fled to South CarolinaB. because many people opposed her workC. Peoples experience can aid them in their careers. Experiences are best described as how many ig followers do i have alexamaldonadoo go quick ill give brainliest (6) These students should be exempt from taking the final exam because they have already demonstrated responsibility and dedication, they know the material, and most importantly they feel that other students will likely be inspired to achieve the ultimate honor-roll goal.7) Primarily, honor-roll students should be exempt from taking the final exam because they are responsible and dedicated. (8) These students have stayed on task, going out of their way to turn in a job well done. (9) Sometimes, they sacrifice by staying up late to finish homework assignments. (10) As one honor-roll student recalled, One time, I stayed up literally all night so that I could finish a project. (11) The problem was not finishing it but making sure that it would come out perfect; it did. Sentence 8 needs to be revised to provide more sentence variety in the paragraph. What is the best way to revise sentence 8? 1) The job has gone out of the way to stay on task and benefit these students. 2) Honor-roll students have stayed on task, going out of their way to turn in a job well done. 3) Staying on task, these students have gone out of their way to turn in a job well done. 4) These students have done a good job and gone out of the way to stay on task. The Battle of New Orleans occurred (before, after, as)the Treaty of Ghent was signedEdge Which type of appeal does President Lincoln use in these line to try to persuade Southerners? How many carbon atoms are there in 3 molecules of CI4? What European settlers wrote the first piece of Antiracist writing in America? What is the difference between facilitated diffusion and active transport?Facilitated diffusion uses ATP and moves substances with the concentration gradient; active transport does not.Active transport uses ATP and moves substances against the concentration gradient; facilitated diffusion does not.Active transport uses ATP and does not require a carrier protein; facilitated diffusion does neither.Facilitated diffusion uses ATP and requires a carrier protein; active transport does not. The United States' main interest in Southwest Asia is oil. Which reason below BEST explains why?A. The United States' main export is petroleum-based products.B. Gas prices are too high.C. The demand for oil increased as the amount of cars and factories increased.O D. The United States wanted to compete with OPEC. Why are stem cells important to multicellular organisms? Why do you think people disagree over the cause of the Civil War?