Which of the following is an example of a positive feedback?

a. when your body is cold and triggers shivering to warm your body up
b. insulin's reducing blood sugar
c. withdrawing your hand from a painful stimulus, like a broken glass
d. the formation of a platelet plug during blood clotting

Answers

Answer 1
I believe it would be (B) but i’m sorry if i am wrong.
Answer 2

Answer:

C

Explanation:

that's the only one that seems reasonable. and (positive)


Related Questions

15. Which of the following is controlled by multiple genes and influenced by the environment? *
Codominant traits
Single gene traits
Polygenic traits
Incomplete dominant traits

Answers

Polygenic traits-more than one gene controls the trait, like height or skin color

what bonds in an atp molecule store the chemical energy used by cells?

Answers

Answer:

quais ligações em uma molécula atp armazenam a energia química usada pelas células?

Explanation:

espero ter ajudado boa noite

WIll GIVE BRAINLIEST!!!!

Answers

Answer:

Both A and B

Explanation:

This was on my test today and I got it correct.

In __________ ribosomes can attach to the mRNA and begin translation even though transcription has not been completed.

Answers

Answer:

prokaryotes

Explanation:

All cells translate using ribosomes. Prokaryotic DNA lacks a nucleus, therefore translation happens before transcription. Simultaneous transcription and translation takes place.

What is translation in prokaryotes?

In all cells, translation takes place at ribosomes. Prokaryotes translate DNA before transcription is finished because their DNA is not bound by a nucleus. Both transcription and translation take place at once. When a start codon on mRNA attached to a small ribosomal subunit is recognized by an initiator tRNA anticodon, translation can start. A second tRNA is recruited as the big ribosomal subunit joins the tiny subunit.

This is not conceivable in eukaryotes because translation takes place in the cytoplasm outside of the nucleus, whilst transcription takes place in a membrane-bound nucleus.

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how long can you keep a fresh turkey in the refrigerator?

Answers

2 days in the fridge

What is coal composed of?

Answers

Answer:

Coal is a sedimentary deposit composed predominantly of carbon that is readily combustible. Coal is black or brownish-black, and has a composition that (including inherent moisture) consists of more than 50 percent by weight and more than 70 percent by volume of carbonaceous material.

Explanation:

What is unique about active sites?

A: active sites provide cells with energy.
B: active sites are specific to certain substrates (reactants).
C: active sites store the genetic information of cells.

Answers

The Unique feature of Active sites is that active sites are specific to certain substrates (reactants)

Active sites are specific regions of an enzyme where substrate molecules bind in other to bring about a chemical reaction.

The active site is made up of amino acid which forms temporary bonds with the substrate otherwise known as the binding site and the residues which brings about a reaction of that substrate.

Active sites are specific to certain substrates (reactants). Therefore, option (B) is correct.

Active sites are vital to enzymes, proteins that aid biological processes. They have a distinctive form that matches their substrate molecules. This specificity allows only particular substrates to bind to and interact with the active site, catalysing processes. This is called the "lock and key" or "induced fit" model.

Enzymes' catalytic action depends on active sites. A substrate attaches to an enzyme's active site and changes conformation, lowering the reaction's activation energy. This speeds up the reaction. After the reaction, the products are released and the enzyme's active site can bind to another substrate. Therefore, option (B) is correct.

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How much percentage of water does the human body have?

Answers

Answer:

Up to 60% of the human adult body is water. According to H.H. Mitchell, Journal of Biological Chemistry 158, the brain and heart are composed of 73% water, and the lungs are about 83% water. The skin contains 64% water, muscles and kidneys are 79%, and even the bones are watery: 31%.

Explanation:

does this help please mark brainliest

■ About 60% - 70% of the human body is water.

■ This can vary from person to person though. ■ The average in females is 45% - 60% , while in males it's 50% - 60%.

■ Babies have more water content percentage (70% - 75%).

[tex]\mathbb{MIREU} [/tex]

Which type of tissue adds structure to
the body?

1. Muscle
2. connective
3.nerve
4.epithelial

Answers

Answer:

4. Epithelial layer

Explanation:

The species that plays the biggest role in the habitat is?

Answers

Answer:

A keystone species is a species that plays an essential role in the structure, functioning or productivity of a habitat or ecosystem at a defined level (habitat, soil, seed dispersal, etc)

Answer:

the one that does the most damage, both to its habitat and the population of species around them.

Explanation:

Define gamete and zygote. What number of chromosomes does each have?

Answers

Answer:

Gametes (23) reproductive cell produced during meiosis that has the haploid number of chromosomes

Zygote (46) diploid cells

The leakiest capillaries, which allow large substances and cells to cross the capillary wall, are called ________________.

Answers

Answer:

sinusoidal capillaries

Explanation:

Help me please!!!!! ASAP!!! ​

Answers

Answer:

Noncyclic photophosphorylation (top) and cyclic photophosphorylation (bottom). These processes are better known as light reactions.

Glycolysis produces 2 ATP molecules, and the Krebs cycle produces 2 more. Electron transport from the molecules of NADH and FADH2 made from glycolysis, the transformation of pyruvate, and the Krebs cycle creates as many as 32 more ATP molecules.

I'm not sure if that'll help you, but yuhhh!

The ____________ is a muscular dome that forms the inferior boundary of the thorax, separating the thorax from the abdomen.

Answers

Answer: the answer is diaphragm

Big brain time The sun is a planet and we are on it true or false >:)!!!!

Answers

Answer:

False.

Explanation:

The Sun is a Star, the Earth orbits the Sun.

what cells/organisms does the spongy parenchyma cell interact with and how​

Answers

Answer:plasma cell

Explanation:

during replication strands of DNA separate from each other when bonds are broken between..
A. phosphates
B. deoxyribose sugars
C. nitrgen bases
D. amino acids

Answers

Answer: Nitrogen bases

During replication strands of DNA separate from each other when bonds are broken between nitrogen bases. Therefore, option (C) is correct.

What is DNA replication?

The biological process of creating two identical copies of DNA from a single original DNA molecule is known as DNA replication. All living things replicate their DNA, which is the most crucial component of biological heredity.

There are two stages to the beginning of the DNA replication process. To begin, a protein known as an initiator unwinds a portion of the DNA double helix along a very short region. After then, a protein that is known as helicase attaches itself to the DNA strands and breaks the hydrogen bonds that are present between the bases. This results in the two strands of DNA being separated.

When two single strands of DNA are cut apart, a 'Y'-shaped structure is produced that is referred to as a replication 'fork.'

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During respiration, most atp is formed as a direct result of the net movemnet of

Answers

Answer:

During respiration, most atp is formed as a direct result of the net movement of protons flowing through a channel

3. ADP + Pi → ATP is best classified as which type of reaction?

Answers

Answer:

Hi Motomasa, you are correct that there is a bit of a misrepresentation, or at least a glossing-over, in the standard description of the function of ATP. The "energy-storing" capacity of ATP is NOT in the forming and breaking of the covalent phosphate to phosphate bonds. ATP -> ADP releases energy by two mechanisms. First because the process of hydrolysing the y-phosphate (the terminal phosphate) releases energy. And second because ATP and ADP are maintained out of equilibrium in cells. The action of utilizing an ATP brings the system closer to equilibrium, which releases energy.

There is a required energy input to break the phosphate to phosphate bond. This is the activation energy. However, the energy released upon hydrolysis and moving the system towards equilibrium are of greater magnitude than the activation energy input. I hope this helps!

Which of the following structures is unique to meiosis?
A) Spindle poles
B) Centrosomes
C) Spindle microtubules
D) Tetrads
E) Kinetochores

Answers

D, tetrads. This is when homologous chromosomes line up next to one another and crossing over can occur in prophase 1.
It’s D) sorry if it’s not the right one because I’m not 100% sure

What happens to the cell's
genetic information during the cell cycle?

Answers

Answer:

Mitosis results in two nuclei that are identical to the original nucleus. So, the two new cells formed after cell division have the same genetic material. During mitosis, chromosomes condense from chromatin. ... At the end of mitosis, the cell has two identical sets of chromosomes in two separate nuclei.

Explanation:

Help plzz with biology USA test prep.

Answers

Answer:

i cant see it

Explanation:

Which is true about sex-linked traits?
a. They are never seen in women
b. They are found on Barr bodies
c. They are carried on the Y chromosome
d. They are passed from mother to son

Answers

Answer:

I think the answer is B

Explanation:

What would be the phenotype of a frog if yellow toes is dominant and the frogs genotype was Yy?
Yellow
Or
Not yellow

Answers

Yellow because if yellow toes is dominant and you have Yy then it will have yellow toes

Get my Joke right u get brainlyest:

How do cows walk?

Answers

They moove ...............................

the protein that carries oxygen in our blood is known as

Answers

The protein that carries oxygen in our blood is known as hemoglobin.

Iron is a component of hemoglobin, which enables it to absorb oxygen from the air we breathe and transport it throughout the body.

What is Hemoglobin?

The iron-containing oxygen-transporting metalloprotein known as hemoglobin, often known by the abbreviations Hb or Hgb, is found in the red blood cells of almost all vertebrates as well as some invertebrate organs. The oxygen from the respiratory organs is transported to the rest of the body by hemoglobin in the blood.

The normal ranges for haemoglobin are different for males and females, and they also vary depending on the ethnicity of the population. Additionally, age is a factor, particularly for women.

When you have anemia, your body doesn't produce enough healthy red blood cells to supply your tissues with enough oxygen. Anemia, commonly known as low hemoglobin, can make you feel exhausted and frail.

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What is the average beak depth of the current finch population?

Answers

What is the average beak depth of the current finch population?

Answer: The most common beak depth of the initial population (red bars) was 8.8 mm. A very small proportion of individuals with this beak depth survived the drought. More than half of the initial finch population died during the drought. The most common beak depth of the surviving population (black bars) was 10.3 mm.


Which units can be used to measure length or distance? Check all that apply.

Answers

Answer:

what are the options?

Explanation:

we dont know what the units are lol

the hair cells responsible for hearing are located on the ________; their hair bundles are embedded in the ________

Answers

Answer:

Basilar Membrane; Tectorial Membrane

Hope this helped! :^)

what processes in your cells produce the co2 that you exhale?

Answers

Answer:

Co2 is released from the pyruvate that is formed during glycolysis, and CO2 is also released during the citric acid cycle.

Explanation:

Cellular respiration in mitochondria produces [tex]CO_2[/tex] as a waste product, exhaled during breathing.

Cellular respiration occurs mostly in mitochondria. During cellular respiration, glucose and other nutrients are broken down to make ATP. This procedure produces [tex]CO_2[/tex]. [tex]CO_2[/tex] from mitochondria diffuses into the circulation.

Breathing exchanges [tex]CO_2[/tex] for oxygen in the lungs from the circulation. Your body releases [tex]CO_2[/tex] when you exhale. This important cycle eliminates unwanted [tex]CO_2[/tex] and supplies cells with oxygen for respiration and energy generation.

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