Biology High School

Use the concept of negative feedback to explain body temperature control in humans.

Answers

Answer 1

Answer:

Negative feedback is a vital control mechanism for the body's homeostasis. ... When body temperature drops, the hypothalamus initiates several physiological responses to increase heat production and conserve heat: Narrowing of surface blood vessels (vasoconstriction) decreases the flow of heat to the skin.

Related Questions

I WILL GIVE BRAINLIEST TO THE WHOEVER HELPS ME

Answers

Answer:

Most tissues of the body grow by increasing their cell number, but this growth is highly regulated to maintain a balance between different tissues. In adults most cell division is involved in tissue renewal rather than growth, many types of cells undergoing continuous replacement.

Explanation:

Internal monitors called checkpoints track each step of the cell cycle. In the cell cycle, there are three main checkpoints; one at the end of G1, a second at the transition of G2/M, and a third during the metaphase. Positive molecules of the regulator allow the cell cycle to proceed to the next level.

Mitosis, although continuous process, is conventionally divided into five stages: prophase, prophase, metaphase, anaphase and telophase.

I hope this helps! :)

Please help!!

When purchasing an electrical device, what are the two financial costs you need to consider? Are there any environmental considerations you would make? Explain your reasoning.

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Answer:

Initial price and operating cost

The least amount of solar energy on an annual basis is experienced at

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Answer: the least amount of solar energy is experienced at the poles

Explanation:

The Earth is roughly spherical. The sun’s light hits directly at the equator, but at a steep angle at the poles, so the amount of light per unit area is less at the poles.

Can someone please help me meee

Answers

Answer:

A. fallopian tube

B. ovary

C.  cervix

D. endometrium

hope this helps!! :)

Explanation:

Answer:

A. fallopian tube B. ovary C.  cervix D. endometrium

I NEED HELP IN ENVIRONMENTAL SCIENCE PLEASE

Answers

The answer would be B.

The cell was first discovered by who?and in what year

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Answer:

Robert Hooke and 1665

Explanation:

Question:

The cell was first discovered by who?and in what year.

Answer:Robert Hooke

Year of 1665

The cell has a rich and interesting history that has ultimately given way to many of today's scientific advancements.

#CARRYONLEARNING #STUDYWELL

How can an increase in the falcon population cause an increase in plant population ?

Answers

Explanation:

the eat what eats the plants

Answer:

Hawks might eat herbivore animals, meaning less plants will be eaten by them as there are less

Vhat function does the cytoplasm perform in plant and animal cells?
A. It directs cellular activity.
B. It holds the cell organelles.
C. It forms a cellular boundary.
D. It makes proteins for the cell.

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the answer is b ..........

Explanation:

b

how do you know that individual 1 is heterozygous for the trait

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Heterozygous is having 2 different alleles of a certain gene, meaning one is not dominant. Instead one is a recessive such as Aa

Mitosis goes through two divisions to create diploid cells. true or false

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Answer:

false

Explanation:

mitosis goes through one division cycle

Answer:True.

Explanation:

Visit a grocery store and look at the packets and cans of different food items.Read the details given on them ,find and note the energy they contain.Make a list of various food items(at least ten)and the amount of energy they contain in kilojoules per 100gm or 100ml.Also mention whic food contain most energy and which contain least energy.

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Answer:

Sweet Corn - 395KJ

Fruit cocktail - 265KJ

Marshmallow - 342KJ

Tuna fish - 132 KJ

beans - 600KJ

noodles - 1600KJ

chips - 458KJ

Soup - 140KJ

cookies - 1761KJ

Juices - 350KJ

Explanation:

The canned food are packed with special packaging material to make the food item freshness last longer. The food items are preserved in tin packs with airtight packaging.

In multicellular organisms, life begins as a single cell until blank occurs, causing growth

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the blank is fertilization

In the example about the beaver's teeth, is it possible for just one beaver to evolve and get a favorable trait in its lifetime.

A. Yes because it makes sense it would need better teeth to cut down the tree

B. No because all traits are inherited and better teeth would have to come from those beavers with a trait for better teeth

C. Yes because animals control their traits.

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b is correct here but i cant see d

Please help It is making me cry

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Answer:

What are you supossed to be doing

Explanation:

Answer:

Can you give me the answers?

Explanation:

Body processes are regulated by which nutrients?
proteins
carbohydrates
All options are correct
lipids

Answers

I think..............

All options are correct




Answer:

C

Explanation:

Protiens, Carbohydrates, and Lipids all influence bodily processes.

If I wanted to prepare to run a marathon, what type of macromolecule would I want
to consume?

Answers

Answer:

Complex Carbohydrates

Explanation:

There are different types of macromolecules and they all have different purposes, but for a marathon carbs, specifically, complex ones would be best. This is because carbs are the main source of energy for the body. Additionally, unlike proteins, they allow for long-term energy; so you could run an entire marathon without running out of energy.

Are there organisms that can be abiotic and biotic?

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Examples of abiotic factors are water, air, soil, sunlight, and minerals.Biotic factors are living or once-living organisms in the ecosystem.

Biotic describes a living component of an ecosystem; for example organisms, such as plants and animals.

Examples Water, light, wind, soil, humidity, minerals, gases.

Hope this helps!

Complete with the right sign: -9/11 -10/9 I I

Answers

Answer:

either -20.01 or -1.79

Explanation:

-9/11-10/9=-20.01

9/11-10/9=-1.79 it is probably the 20.01 answer.

Can someone please help me??



Which type of reproduction is responsible for genetic variation?

Answers

Answer:

sexual reproduction

Explanation:

Sexual reproduction results in infinite possibilities of genetic variation. In other words, sexual reproduction results in offspring that are genetically unique. They differ from both parents and also from each other.

Other reproductions like asexual, budding or fragmentation don't produce genetic variation.

The type of reproduction is responsible for genetic variation is - sexual reproduction.

Sexual reproduction is combining genetic information from two individuals,  by the fusion of gametes such as sperm and egg, called fertilization which generates more genetic variation, by the process like the combination of alleles and crossing over.

Parents and offsprings are not identical in this reproduction type, however, they are genetically similar.Fusion or combination of two different parent's gametes.There is recombination take place which causes genetic variations as well.

Thus, the correct answer that is responsible for genetic variation is - sexual reproduction.

Learn more about sexual reproduction:

https://brainly.com/question/21499942

match the following DNA strand to is complementary strand of RNA TTC-CCA-GAT-TTT​

Answers

Answer:

okay I think it's

AAG - GGU - CUA - AAA

sorry if wrong ;)

Help plzzzzzzzzzzzzzzz

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Answer:

B) they make the spindle fibers

Explanation:

Answer : Ibelieve it’s to store food not sure but I think so



what does the painting show us about the history of fish in the mediterranean sea?

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Answer:

Uhh.. there ish no painting..

Explanation:

SOMEONE PLEASE HELP ME WITH THIS I REALLY WANT TO PASS!!!!!!!!!!

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Its fossils or its nvm its definitely fossils

Upwelling or Biodiversity

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I’m pretty sure it’s upwelling

What was the foundation of Georges Lemaître’s Big Bang Theory?

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Answer:

Georges Lemaître, Belgian astronomer and cosmologist who formulated the modern big-bang theory, which holds that the universe began in a cataclysmic explosion of a small, primeval “super-atom.” A civil engineer, Lemaître served as an artillery officer in the Belgian Army during World War I. After

Explanation:

hope it helps!

Can someone help asapp

Answers

Answer:

option A

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Sarah and Thomas are thinking about having kids. They are concerned that because Thomas’s father was diagnosed with cystic fibrosis last year, it could run in the family. Cystic fibrosis is a recessive genetic disorder which affects the respiratory system. Both Thomas and Sarah get tested for the recessive allele (f), with the results indicating that they are each carriers of the disorder (a genotype of Ff).
Is it possible for Sarah and Thomas to develop cystic fibrosis?

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Answer:

No they can not develop it because they are carriers and do not have ff only Ff, but their kids have a high chance of getting it. (50% chance)

Explanation:

What is Jupiters water availability?

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Answer:

Long thought to be virtually dry, it turns out that Jupiter has significant water. New data from NASA's Juno spacecraft, which launched in 2011 and is orbiting the planet right now, suggests that water makes up about 0.25% of the molecules in Jupiter's atmosphere

Explanation:

the planet has about 0.25% of water that makes up the planet

Plant and Animal Cells
What is the name of this organelle?

Answers

Answer:

Golgi apparatus

Explanation:

Condensation occurs in clouds. Explain how and then explain what happens with the clouds gain too
much condensation

Answers

When clouds condensate too much, the water pulls the cloud down and it starts to rain.
Other Questions
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