Which of the following describes a positive feedback loop?
O When blood sugar concentration is too low, the endocrine system secretes hormones that increase blood sugar concentration to a normal level.
O When the body senses that the heart rate is very high, it secretes hormones that decrease the heart rate.
O When blood sugar concentration is too high, the endocrine system secretes hormones that decrease blood sugar concentration to a normal level.
O When someone is exercising intensely, the body secretes hormones that increase oxygen supply for cellular respiration.​

Answers

Answer 1

Answer:

the answer is A when blood sugar contraction is to low

Explanation:

i took the test

Answer 2

The statement that describes a positive feedback loop is as follows: when blood sugar concentration is too low, the endocrine system secretes hormones that increase blood sugar concentration to a normal level.

What is positive feedback loop?

A positive feedback loop is a feedback loop that occurs in nature when the product of a reaction leads to an increase in that reaction.

A negative feedback loop, on the other hand, occurs when increased output from the system inhibits future production by the system.

Therefore, the statement that describes a positive feedback loop is as follows: when blood sugar concentration is too low, the endocrine system secretes hormones that increase blood sugar concentration to a normal level.

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Related Questions

can someone help plsssssssssssssssss

Answers

The body will not retrain enough nutrients

Answer:

The body will not retain enough nutrients.

Explanation:

Hope this helps!!

Help me please! Thanks

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Answer:

WATSON and CRICK For number 5

Explanation:

actually, i'm not lying ;)

Please help me on this!

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Answer:

im pretty sure its B

Explanation:

Under what conditions would you expect to see a full moon?

Answers

Answer:

when the Moon has moved in its orbit so that Earth is “between” the Moon and the Sun.

Explanation:

all you need is in the photo


ASAP​

Answers

Answer:

D.)

Explanation:

Answer:

CCA

Explanation:

Can someone pls help me with these two question pls I would really appreciate it. I’ll give brainliest to whoever answers it correctly.

Answers

Answer:

lithium and oxygen - ionic bondsulphur and oxygen - covalent bond
Did You Get It Right

At the end of meiosis, what do females make?

Answers

Answer:

Meiosis produces our sex cells or gametes. Females produce an egg. Males produce sperm

Explanation:

Answer:

at the end of meiosis, females take the xx chromosome equals to 23each

A hemisphere experiences summer when _____________ .

A) it is tilted toward the Sun

B) it is tilted away from the Sun

Answers

Answer:

A

Explanation:

tilted towards sun....

A... tilted towards the sun

what do the phase changes condensation, evaporation, and crystallization have in common?

Answers

Answer:

They are all a part of the water cycle.

Explanation:

Hope this helps!!!

17. At the end of their biology unit, 7th grade students were asked to make a glossary of biological terms. Which student did the best job of defining the word "heredity"?​

Answers

Answer:

The question is incomplete, I found a matching question online:

At the end of their biology unit, 7th grade students were asked to make a glossary of biological terms. Which student did the best job of defining the word "heredity"?​

A) Kendall- Heredity is the study of chromosomes and the genes that they contain.

B) Carla- Heredity is the passing of genetic information contained in chromosomes from one generation to the next.

C) Joseph- Heredity is the study of human characteristics passed down from parent to offspring.

D) Devon- Heredity is the reason that tall parents will usually have tall children.

Answer:

The correct answer is:

Carla- Heredity is the passing of genetic information contained in chromosomes from one generation to the next. (B)

Explanation:

Heredity, also known as inheritance is the passing down of genetic traits and genetic information from parents to their offspring through reproduction (sexual or asexual), and this information is contained in DNA materials called chromosomes.

Carla's definition most appropriatly captures the context of genetics, while Kendall and Joseph rather defined "genetics", which is the study of heredity.

Devon did not give a definition, but rather an example.

2.
A cell detects that it had depleted its stores of Ca2+ Which of the following would not help the cell regain homeostasis?
(A) O Increasing the number of chloride ion channels on the cell membrane
(B) O Releasing a hormone that prompts the breakdown of bone to release calcium
(CO Signaling the intestine to absorb more calcium from food
(D) O Decreasing processes which require calcium
Come Back to This I'm guessing Remove My Choice

Answers

Answer:

(A) O Increasing the number of chloride ion channels on the cell membrane

Explanation:

This is because options B, C and D require processes which make calcium available for the cell and homeostasis is the process of returning the cell back into its stable condition.

All other options except A do not help the cell return to its stable condition.

So, the answer is A

what are breeding programmes for endangered species?

also give an example

Answers

Answer:

A breeding programme for endangered animals is where endangered animals are taken from their natural habitats in the wild and bred together in captivity to stop them going completely extinct. For example in the UK, beavers were endangered until they were entered into a breeding programme and eventually, successfully, reintroduced to their natural habitats in the UK.

Explanation:

What is the difference in terms of function and structure for arteries and veins?

Answers

Arteries are blood vessels responsible for carrying oxygen-rich blood away from the heart to the body. Veins are blood vessels that carry blood low in oxygen from the body back to the heart for reoxygenation. ... They're part of two closed systems of tubes that begin and end at the heart. I hope this helps. Have a great day. ☺️

why is important to use an organism with a recessive phenotype in a cross with an organism of unknown Genotype

Answers

Answer:

One of the central conclusions Mendel reached after studying and breeding multiple generations of pea plants was the idea that "[you cannot] draw from the external resemblances [any] conclusions as to [the plants'] internal nature." Today, scientists use the word "phenotype" to refer to what Mendel termed an organism's "external resemblance," and the word "genotype" to refer to what Mendel termed an organism's "internal nature." Thus, to restate Mendel's conclusion in modern terms, an organism's genotype cannot be inferred by simply observing its phenotype. Indeed, Mendel's experiments revealed that phenotypes could be hidden in one generation, only to reemerge in subsequent generations. Mendel thus wondered how organisms preserved the "elementen" (or hereditary material) associated with these traits in the intervening generation, when the traits were hidden from view.

It is important to use an organism with a recessive phenotype in a cross with an organism of an unknown genotype to identify the recessive traits.

What are phenotype and genotype?

The observable traits of an individual are the result of gene expression; the clinical manifestation of a person with a certain genotype is called the phenotype of an individual. Some examples of the phenotype are height, skin color, eye color, hair nature, etc.

The term "genotype" refers to an organism's whole gene pool, or, in other words, the genetic makeup of that creature. The phrase can also be used to describe the alleles, or different forms of a gene, that an organism carries in a more specific meaning.

A recessive phenotype is used in a cross with an organism of unknown Genotype to identify the recessive traits.

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In relation to natural gas, where is crude oil generally found?


Crude oil is found above natural gas reservoirs.


Crude oil is found next to natural gas reservoirs.


Crude oil is mixed in with natural gas reservoirs.


Crude oil is found below natural gas reservoirs.

Answers

Answer:

*Crude oil is found below natural gas reservoirs.*

Explanation:

the explanation is because well.. that is where it is found.

Answer:

*Crude oil is found below natural gas reservoirs.*

:)

In your own words describe the Theory of Evolution and Natural selection

Answers

In the theory of natural selection, organisms produce more offspring than are able to survive in their environment. Those that are better physically equipped to survive, grow to maturity, and reproduce. Biologists have since observed numerous examples of natural selection influencing evolution

Can you write an essay about what makes a good rapper.
I will mark you Brainly.

Answers

Answer:

There are many rappers out there in the world yet only a few of them are really well known and recognized. Of course this is because they meet peoples expectations. Different people have different opinions on what makes a good rapper. Things that I think make a good rapper is that they need to have good flow, meaningful lyrics that actually make sense and not just rhyme any word with another that doesn't make sense. Another thing is how they are like as a person as well. If they are a pretty decent human being and meets peoples expectations then they will be considered as a good rapper. If the person is not only ignorant but also can't rap well then they are considered bad. Like I said many people have different opinions but these are just mines.

Explanation:

You may change anything you would like but I hope this helped!

Which level includes organisms that get their energy solely from an abiotic factor?

Answers

Answer:

Not enough information, but I would have to go with producers.

Explanation:

Producers use abiotic factors (mainly the sun and water).

Why are viruses considered to be nonliving?
A)They cannot live outside a host
B)They do not respond to their environment
C)They cannot use energy
D) They have no genetic material

Answers

Answer:

it should be A if im correct.

Where does compression often occur?
1. Along a normal fault
2. Along a strike strip fault
3. At a divergent boundary
4. At a convergent boundary
Please hurry, thank you!

Answers

Answer:

Compression often occurs at a convergent boundary.

Compression often occur at a convergent boundary.

What does compression often occur?

Compression is the most common stress, that occurs at convergent plate boundaries.Tension is the major type of stress at divergent plate boundaries.

What are convergent and divergent boundary?

When two plates come together, it is known as a convergent boundary.When two plates move away from each other,it is known as divergent boundary.

What are strik strip fault and normal strip fault?

Strik strip fault is a fault on which the two blocks slide past one another.Normal faults is an inclines fractures where the rock moves down.

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Why is DNA analysis useful for classification

Answers

Answer:

Well, it helps us categorize organisms so we can more easily communicate biological information.

Explanation:

An event that restricts the size of a population such as weather events like drought or flood is likely a

1)density dependent limiting factor
2)density independent limiting factor
3)immigration
4)emmigration

Answers

Answer:

The correct answer is - 2) density-independent limiting factor.

Explanation:

Density-independent limiting factors are the factors that cause a change in the size of the population without getting influenced by the density of the population.

Density-independent limiting factors include biotic or abiotic factors with catastrophic conditions such as natural disasters such as floods, earthquakes, drought, fires, and many more.

Drought affects the size of the population by increasing competition in the ecosystem for resources.

1. Which type of information about rattlesnakes
does the bar graph above show? SC.7.L.15.2
A adaptation
B evolution
Cmimicry
D variation

Answers

Answer:

Variation

Explanation:

Answer: Variation

Explanation:

Has different species of rattlesnakes shown in the graph.

PLEASE HELP, WILL MARK BRAINLEST

Answers

Answer: salinity is lower in areas that have decreased precipitation

Reason: the density of water increases as the salinity increases.

(Meme attached for you.)

The following original section of DNA is replicated, and a mutation occurs in the sequence. Compare the original sequence to the copied sequence. Which type of mutation occurred?

The original DNA.
TTACGGCCTA

The copied DNA.
TTACGCCTA


1. Physical
2. insertion
3. Deletion
4. substitution

Answers

Answer:

3. Deletion

Explanation:

The original DNA is TTACGGCCTA when the copied one misses the second G

TTACGGCCTA

TTAC GCCTA

The empty space is where the deletion happened.

5. How many pairs of chromosomes are there in each
human *body cell?

Answers

Answer:

In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46.

Explanation:

What is the variety of gene combinations that exist within a population called?

Answers

Population geneticists study the variation that naturally occurs among the genes within a population. The collection of all the genes and the various alternate or allelic forms of those genes within a population is called its gene pool.

A population's genetic diversity can be quantified via genetic variation, genetic diversity is the term used to describe the genetic variation of an entire species.

What is genetic variation?

Each variant of a gene is referred to as an allele, and genetic variations are the variances in DNA segments or genes across individuals.

A population's naturally occurring genetic diversity is studied by population geneticists. A population's gene pool is made up of all the genes and different alternative or allelic versions of those genes.

Some genes exist in a number of forms, all of which share the same genetic locus on a chromosome.

Therefore, genetic diversity is the variety of gene combinations that exist within a population.

Learn more about genes, here:

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. What causes a hurricane to form


will give brainliest to smartest answer

Answers

Answer:

For one to form, there needs to be warm ocean water and moist, humid air in the region. When humid air is flowing upward at a zone of low pressure over warm ocean water, the water is released from the air as creating the clouds of the storm. As it rises, the air in a hurricane rotates.

Explanation:

In short pressure zones over warm ocean

Answer:

When warm moist air over the water rises, it is replaced by cooler air.

The cooler air will then warm and start to rise.

If there is enough warm water, the cycle will continue and the storm clouds and wind speeds will grow causing a hurricane to form.

Explanation:

I used to live in SW. Fl

hope this helps :)

tiying pe
Answer the following questions.
4) Choose the best answer.
How are organisms classified in the phylum category?
based on basic body structure
color
cell structure
chromosomes

Answers

Answer:

Basic body structure.

Explanation:

Organisms classified in the phylum category on the basis of their basic body structure. Organisms are classified in the groups and subgroups on the basis of similarities and differences. Those organisms that show resemblance is to be put in the same group. They have some similar characteristics such mode of reproduction, mobility, feeding behaviour and body structure etc.

Which labeled structure would be the most likely site in which these malfunctioning proteins exist?
Choose 1 answer:
Choose 1 answer:

(Choice A)
A
Structure A

(Choice B)
B
Structure B

(Choice C)
C
Structure C

(Choice D)
D
None of these labeled structures would be the site of the malfunctioning proteins.

Answers

Explanation:

you answer is D none of these labeled structures would be the side of the malfunctioning proteins

Answer:

Its A

Explanation:

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