Breathing is an involuntary process controlled by the respiratory centre in medulla oblongata.

What happens to the rate of respiration of a climber at the peak of a mountain? ​

(4 marks)


Please help giving the answer and explaining it briefly to mee.. I will give brainliest :) ​

Answers

Answer 1

Answer:

When we travel to high mountain areas, our bodies initially develop inefficient physiological responses. There is an increase in breathing and heart rate to as much as double, even while resting. Pulse rate and blood pressure go up sharply as our hearts pump harder to get more oxygen to the cells.

Explanation:

from online, rephrase


Related Questions


The data table below shows how long it takes each inner planet to make one complete rotation and revolution. The numbers listed are in Earth days (24-hour periods).
On which planet is 1 day longer than 1 year?

Answers

Answer:

venus

Explanation:

the time taken to rotate is longer than time taken to revolve

what are the reasons for a dogs ability to smell

Answers

Dogs can detect cancer cells, explosives, drugs, and track and find lost people or animals - all by using the power of their noses and the part of their brain that analyses and processes those scents.

this is what i looked up and got

Yo can someone help me out

Answers

A possibly sorry........

Answer:

hee hee rog

Explanation:

Which of the following is NOT a nitrogenous base?
adenine
thymine
guanine
alanine

Answers

Answer:

Explanation:

Alanine is the correct answer

Alanine is NOT a nitrogenous base the other 3 can be found in your dna which is a nucleic acid

Which is NOT an example of a vestigial
structure?
A. eyes of a blind salamander
B. pelvic bones in a whale
C. thorns on a rose bush
D. wings on a flightless bird

Answers

C. thorns on a rose bush

is your answer.

⚠️⚠️⚠️ help please ⚠️⚠️⚠️


Factors such as a person's age, environment, and
lifestyle may
affect the genotype.
affect the phenotype.
affect both genotype and phenotype
affect neither the genotype nor the
phenotype.
O

Answers

Answer:

affect the phenotype.

the lowest layer odnbf​

Answers

Answer: ;-; wut? i- my brain cells you just killed my brain cells in 1 sec i-

Explanation:

Lowest layer of wat??

help please thanks This is for Science

Answers

Answer:

no he got banned

Ex

planation:

Give two examples of what a living thing can do once it has converted the energy from food into usable forms of energy.

Answers

Answer:

When the chemical energy in food is transferred to cells in the body, the energy can be transformed into energy used by the body to do many things like run, ride a bike, do the dishes, pump the heart, and keep the body warm.

The chemical energy, which is needed by the organisms comes from the food. Food comprises organic molecules, which captivates energy in their chemical bonds.  

• The organisms generally use two kinds of molecules for chemical energy, ATP and glucose.  

• Both the molecules are utilized as fuels all through the living world.  

Energy is the tendency to perform an activity. It is required by all the living species and every living cell to perform the processes of life.  

Energy in the form of chemical energy is utilized to dissociate and form the molecules, and to transport several molecules through the cell membranes.  

• The organisms primarily use ATP and glucose for energy.  

Thus, the form of energy required by the living species to perform the essential activities of life is obtained from food.

To know more about:

https://brainly.com/question/23930528

which of the following is a scientific question A how many centimeters are in a meter B what is the average length of a white pen needle see C what is a good length for my pant legs D how long should I grow my hair ​

Answers

A.how many centimeters make one meter

what gives sperms motility​

Answers

Answer:

The tail of the sperm, the flagellum

Explanation:

We find cilia in the human body. They coat the epithelial cells of the upper respiratory tract and play a role in keeping dust particles, smog, and potentially harmful microorganisms from entering the lungs.

Their movements enable the movement of mucus or other substances across the surface of various epithelial cells. The cilia also cover parts of the male and female reproductive tract.  

Flagella are found in sperm, whose tail represents the flagellum in its structure. The body wall of the sponge, among others, contains cells with whips that create and maintain the flow of water through the body.

The expected phenotypic ratio of a dihybrid cross is
9:3:3:1
1:2:2:4:2:2:1:1:1
1:1:1:1:1:2:2 1:4:1:1
8:2:4:1:1

Answers

Answer:9:3:3:1

Explanation: Just took the test!

Answer:

9:3:3:1

Explanation:

how to get big and all thing

Answers

Answer:

hih

Explanation:

what that means what ur talking bout

Answer:

What I'm confused


Is this rock Felsic or Mafic or
In between


Answers

I believe it is in between. it shows to have both felsic and mafic properties

PLZ HELP IM TAKING MY EXAM!! which of the following best explains the impact of mrna being double stranded before translation

Answers

Answer:

Impact of double-stranded mRNA before translation would inhibit the binding of tRNA to mRNA ti synthesize protein.

Explanation:

The mRNA is a molecule that, with the exception of viruses with double-stranded RNA, has only one chain. It is in charge of conducting to the ribosomes the sequence of nucleotides that makes possible the translation and the synthesis of proteins.

Once the ribosome translates the information of each codon of the mRNA, a transfer RNA (tRNA) molecule, with a complementary anticodon, provides the amino acid corresponding to the translated codon.

If the mRNA were double-stranded, the translation process would be altered, since binding of the tRNA with the amino acid it carries and mRNA codon would not be possible, as well as the protein synthesis.

WHAT IS GOING ON ??????

Answers

What is going on? There is no question

What will happen if external factors affect cell division in a group of cells placed in a culture dish

Answers

Answer:

The effect of an external physical factor on cell division is clearly seen in density-dependent inhibition, a phenomenon in which crowded cells stop dividing. ... When cells have formed a complete single layer, they stop dividing (density-dependent inhibition).

Explanation:

A scientist observed that during the course of a chemical reaction the number of ATP molecules were converted into ADP. What did the scientist most likely learn from the observation? a The reaction caused an output of energy. b The reaction produced water. c The reaction consumed water. d The reaction required an input of energy.

Answers

Answer:

a The reaction caused an output of energy

Explanation:

Adenosine triphosphate, commonly known as ADP, is an high-energy storage molecule in living cells. It stores and transfers needed energy for metabolic activities. ATP stores its energy in the bonds that hold the phosphate group in its structure. However, the energy is released for use during metabolic processes when the phosphate bond is broken, leading to the release of ADP molecule.

In this case, a scientist observed that during the course of a chemical reaction the number of ATP molecules were converted into ADP. This means that the reaction has caused ATP molecules to release its stored energy i.e. an energy output.

Amylase is an enzyme found in saliva that helps break down starches into glucose. Which of
these statements best describes how amylase starts this reaction?
A. Amylase binds to the glucose to start the reaction.
B. Amylase provides extra energy to start the reaction.
C. Amylase decreases the energy needed to start the reaction.
D. Amylase changes the shape of the starch to start the reaction.

Answers

Answer:

Amylase is not the enzyme found in saliva it is ptyalin

Explanation:

the digestion of starch starts in the mouth.

the ptyalin hydrolysis the starch.

Describe the relationship between blood, tissue, fluid and lymph​

Answers

Answer:

Nutrients such as glucose and amino acids as well as oxygen are pushed out from the blood into the tissue fluid. The rest of the fluid is collected by the lymphatic system. The lymph is similar to the tissue fluid. This is the relationship between tissue fluid and lymph.

Explanation:

The light dependent reaction requires energy from the sun. What other reactant does this reaction require

Answers

Answer:
carbon dioxide

What is Electron Transport Chain and what happens in that stage of cellular respiration?

Answers

The electron transport chain (ETC) is the final step of cellular respiration and takes place in the mitochondrion.

The final step in cellular respiration is the electron transport chain. This is sometimes abbreviated as ETC. ETC needs oxygen, which means aerobic process. It occurs at the edges of the inner lining of mitochondria. These handles are called cristae.

Which structure is correctly paired with its function? (1) testis — produces nutrients for the offspring (2) placenta — allows nutrients to diffuse from the mother to the embryo (3) uterus — produces testosterone used in egg production (4) ovary — provides a place for the internal development of the embryo

Answers

Answer:

(2) the placenta allows nutrients to diffuse from the mother to the embryo.

Explanation:

The placenta is a shared organ between the mother and the embryo. It diffuses the necessary nutrients from the mother to the future baby and the residues from this one to the mother, so that she can expel them. The placenta separates the mothers and the embryo blood, but it allows the diffusion of said nutrients and wastes through especial parts of the placenta with thin walls.

What is the pressure at 4000 km below the earth's surface?

Answers

Answer:

Pressure = 2.3 million atm

I will give brailiest to the first person who can get this question correct

What mushroom is it?

A) parasol mushrooms
B) Shaggy parasol
C) Browned mushrooms
D) Toadstool rusty brown​

Answers

Answer:

A

Explanation:

I edited. I first put D if that helpes

Answer:

D

Explanation:

A product that is no longer used is said to be _____.

coexisting

current

emerging

obsolete

Answers

Answer:

The correxr answer is obsolete

Answer:

the answer is obsolete

Explanation:

obsolute-no longer produced or used

Which facility relies on a nonrenewable source of energy?
Group of answer choices

a wind farm that uses wind turbines

a solar farm that collects sun light

a dam that uses the power of water

a power station that burns coal

Answers

The answer is a peer standpoint

Joan saw a mushroom growing on the stump of a dead tree. What would Joan infer about the role of the mushroom

Answers

The mushroom is a decomposer. So, since the tree is dead, the mushroom is working on decomposing it.

Pick all of the benefits of mass transit systems
select all that apply.
a-reduces highway congestion.
b-saves energy.
c-reduces air pollution.
d-limit the loss of land to roadways & parking lots.

Answers

The answers are c and d

The chaparral biome is best characterized by
A) large, contiguous regions of shrubland
B) small regions interspersed with other biomes
C) large noncontiguous regions interspersed with other biomes
D) the animals dwelling in it
E) the plants that grow in it
Pls help ASAP !

Answers

Small regions interspersed with other biomes. It’s choice B. I hope this helps. Have a nice day.
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