Why is the human heart cooled for surgery?

Answers

Answer 1

Answer:

By cooling the heart, its need for oxygen is reduced. This allows surgeons to work on the heart for two to four hours without damaging the heart tissue.

Answer 2

Answer: By cooling the heart, its need for oxygen is reduced.

Explanation:This allows surgeons to work on the heart for two to four hours without damaging the heart tissue.


Related Questions

HELP ASAP
Which statement is true about scientific theories and laws?
A theory can never become a law
If enough evidence is found for theory, it will become a law
Theories have more proof than laws
Only laws are widely accepted by the scientific community

Answers

Answer:

A theory can never become a law

Explanation:

The rest are wrong

Theories can change

Laws cannot

A dead organism takes matter out of the ecosystem cycle and that matter
can never be used again. *
O True
False

Answers

Answer:

Decomposers break down dead organisms into nutrients and gases so that they can be used by other organisms. Nutrients can enter or exit an ecosystem at any point and can cycle around the planet.

Answer:

False

Explanation:

Which pair of waves could overlap to produce a wave with a higher amplitude through interference?​

Answers

Answer:

D: Two waves of the same amplitude with crests that are perfectly aligned

Explanation:

A P E X

what is the next number of the sequence?

0.99, 9.9, 99, 990, ____

Answers

I believe the next number is 9900

Reason: To get the next number in the sequence, move the decimal point

0.99 —> 9.9

9.9 —> 99.

99. —> 990.

990. —> 9900.

Sorry if wrong

what is the problem with organizing organisms taxonomically purely based on their physical traits

Answers

Answer:

See the answer below

Explanation:

The problem with grouping organisms together taxonomically based on their physical traits is that organisms that not genetically or evolutionally similar would be grouped together. Grouping would be based entirely on superficial similarities instead of combining different features such as genetics, nutrition, the complexity of bodies, etc.

Based on physical traits, for example, all flying organisms will be grouped together. Birds, flying insects, bats, etc. would be grouped together, whereas, they are quite different from one another when it comes to the complexity of bodies and other features. Even though some insects have wings and can fly like birds, insects have exoskeletons and birds do not, the body of birds is more complex than that of insects, and evolutionally, birds are more advanced than insects.

Hence, grouping organisms based on their physical traits only would be too superficial and not reflect the true relationships between organisms.

What is the relationship between a person's PULSE RATE and his or her HEART BEAT? A. The heart beat is always double the pulse rate. B. The heart beat and pulse rate may change, but are always equal. C. The heart beat is always half of the pulse rate. D. There is no relationship between the heart beat and the pulse rate.

Answers

Answer:

B. The heart beat and pulse rate may change, but are always equal.

Hope this helps :D Have a fantastic day

A plant or animal that carries a disease or parasite during part of its life cycle is called a(n):

Answers

Answer:

it could probably be host

Answer:

A plant or animal that carries disease or parasite during part of its life cycle is called a host

I HOPE IT HELPS ❤❤

What controls the cell cycle at key checkpoints?
a Regulatory proteins
b Regulatory lipids
C Regulatory carbohydrates

Answers

Answer:

a regulatory proteins

Explanation:

njnjnj

6B(SCIENCE) (6BB OOB)
4
What is the difference between evaporation and boiling? *
(1 Point)
A) There is no difference - they are exactly the same.
B) Evaporation, unlike boiling, occurs at all temperatures.
C) In evaporation, unlike in boiling, there is no state change.
D) In boiling, unlike in evaporation, the liquid volume reduces.
This question is required.​

Answers

B) Evaporation , Unlike boiling, occurs at all temperatures

Please someone helpp pleassseee pleaseeee

Answers

Answer:

Honeybees and Flowers

Honeybees and flowers

3. Explain how the Gulf Stream (a warm ocean current) effects the climate of Northern Europe.

Answers

Answer:

These currents transfer heat from the tropics to the polar regions, influencing local and global climate..

The warm Gulf Stream originating in the tropical Caribbean, for instance, carries about 150 times more water than the Amazon River. The current moves along the U.S. East Coast across the Atlantic Ocean towards Europe ...The heat from the Gulf Stream keeps much of Northern Europe significantly warmer than other places equally as far north.

Answer:

The Gulf Stream, located in the north Atlantic Ocean, has an important effect on climate, transportation by sea, and the circulation of nutrients and waste in the ocean. It works together with the North Atlantic Drift to bring warm air from equatorial regions across Europe. This changes Europe’s climate by providing mild temperatures and more rain. As a result, farmers can grow more crops, and fewer freezing temperatures damage goods.

Explanation:

I had a similar question and this was the answer.

Which shows the levels of organizational hierarchy listed from least complex to most complex?
O organism, population, community
O species, ecosystem, community
O population, community, species
O organism, community, population

Answers

Organism, population, community (first choice)



I hope this helped out, have a nice day! :)

Please respond quickly!!! This is due soon!

Identify the natural processes that occur on the earth's surface to make and destroy rocks.

Answers

The physical processes on Earth create constant change. These processes—including movement in the tectonic plates in the crust, wind and water erosion, and deposition—shape features on Earth's surface.

Answer:

You learned about the three rock types: igneous, sedimentary, and metamorphic. You also learned that all of these rocks can change. In fact, any rock can change to become any other type of rock. These changes usually happen very slowly. Some changes happen below Earth’s surface. Some changes happen above ground. These changes are all part of the rock cycle. The rock cycle describes each of the main types of rocks, how they form, and how they change.

The figure below shows how the three main rock types are related to each other (Figure below). The arrows within the circle show how one type of rock may change to rock of another type. These are the processes that change one rock type to another rock type.

Explanation:

HELP ASAP
Joe is experimenting to determine which liquid will cause bean plants to grow faster. He watered the plants with equal amounts of liquid and measured their height every other day. The plants are in the same pots with different soils and placed in the same location. Will Joe be able to obtain reliable data to write a supported conclusion?
Yes, because he is only observing the height of the plant.
Yes, because he is consistent with watering the plants.
No, because he used different soils.
No, because he uses only one type of plant.

Answers

Answer:

No, because he used different soils.

Explanation:

which liquid will cause bean plants to grow faster.

He watered the plants with equal amounts of liquid and measured their height every other day.

The plants are in the same pots with different soils and placed in the same location.

Ok so last statement made the experiment wrong.

As a constant variable the soil should be the same for all plants only the liquid should change

Water that falls onto land surfaces is either soaked into the ground or flows downhill into a body of water. The water that soaks into the ground is called groundwater.

Soil and rock that allow this water to pass through them are called ________.
A. aquifers
B. compacted
C. permeable
D. runoff

Answers

Materials that allow water to pass through the are called....

C. Permeable

The capacity of a rock or other substance to let the passage of water is known as permeability, hence option c is correct.

What is groundwater?

Groundwater may readily flow through permeable materials because the pore space is linked throughout the rock or sediment. Mud and clay are examples of materials with great porosity yet very limited permeability.

An aquifer is a water-bearing rock that easily transfers water to wells and springs, the aquifers may be dug into and water pumped out.

Therefore, water that falls onto land surfaces flows into water bodies or it may be soaked in the ground, this water flows through the soil and rock which are permeable, hence option c is correct.

Learn more about rocks, here:

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Which statement is true about gold and helium?
A. They both occur as a gas at room temperature.
B. They are both made of subatomic particles.
C. They are both used in balloons.
D. One of made of protons and the other of only electrons.

Answers

Answer:

The answer is B

B. They are both made of subatomic particles.

which nitrogen bases are pyrimidines

Answers

Thymine and Cytosine are pyrimidine nitrogen bases.

Answer:

Thymine and Cytosine

In a meeting, the presiding officers would like to convince the group on the
importance of a certain mandate but the group seems too passive about it.​

Answers

Answer: Brainstorming meeting

Explanation:

In the brainstorming meeting the agenda of the meeting is put forward. The diverse knowledge, skills, opinions, and background are valued in such meeting. The participants may have distinct opinions and it becomes uneasy to convince the group by the presiding officers. The group members can be passive about the mandate as they may have different perceptions and ideas to tackle a matter.

List 3 organisms that are made of plant cells:

Answers

Answer:

Seed Plants

Ferns

Mosses

Thallophytes

Explanation:

Which level of organization is formed when a group of organs work together to perform complex functions?
Molecule
Organ
Organ system
Tissue

Answers

Answer:

Organ system is the correct answer, i took the test and passed.

( trust me ;)

Explanation:

Please give me brainlyest

I hope this helps

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Answer: i think it is the 3rd one but i am not sure  

Explanation: hope you pass the exam :)

PLEASE HURRY I AM TIMED!!!
Are aliens real? Explain your answer.

Answers

Answer:

No, not according to any sciences (unless you mean aliens as in immigrants)

Explanation:

There is no way that we are the only living thing in the entire world. There has to be another species out there.  They might be wondering if there is another living thing out in space too.

All cells in an organism have the same copy of DNA, because they all came from the same orginal cell.
True Or False

Answers

the answer would be true

what means biotic component?​

Answers

Any living thing in there please so whether it is the trees or plants or animals anything that is living

all the black widow spiders on a 5 acre farm
A. biotic factor
B. population
C. species
D. community

Answers

The answer is B. Population

Species because they group that shares the same traits

which is more specific chordata or Eukarya​

Answers

Chordata

:):):):):):)

Which of the following is not reflective of Albert Bandura's view on personality? ○Behavior is determined solely by the environment.
○ One's thoughts and behavior can influence the environment.
○Individuals can manipulate their environment to suit personal needs. ○Environment can influence one's behavior through observational learning.

THE ANSWER IS THE FIRST CHOICE-
**Behavior is determined solely by the environment.​

Answers

Answer:

○Behavior is determined solely by the environment.

Explanation:

The above statement is true which happens to be not a reflective of Albert Bandura's view on personality. On the other hand, ones view and personality happens to be influenced by so many factors in which the environment happens to be one of them.

Answer:

the first option

i need some help on this i dont know can someone plz help me

Answers

Answer:

D is your answer I believe

What would be the concern if a high percentage of cells were in some phase of Mitosis?

Answers

Answer:

When cell division goes wrong, harmful mutations affect the daughter cells

When these errors are not corrected, one of the daughter cells will be born lacking a particular chromosome while the other will inherit an extra copy of the chromosome

Explanation:

What parts of the body make up the central nervous system

Answers

Answer:

brain and spinal cord

Explanation:

that's it

Summarize cell division in prokaryotes

Answers

According to the research, the correct answer is that unicellular living beings like prokaryotes have their cell division by binary fission, forming two identical individuals (daughter cells).

What is binary fission?

It refers to the process of cell division where first the deoxyribonucleic acid (DNA) is duplicated and then cytonesis occurs, which involves the separation of the cytoplasm.

In this sense, it gives rise to two daughter cells with identical genetic material, this is the reproduction method shared by certain yeasts, algae, bacteria and other prokaryotic organisms.

Therefore, we can conclude that the cell division mechanism of prokaryotes is through binary fission where two daughter cells arise.

Learn more about binary fission here: https://brainly.com/question/12196278

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