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Ronch [10]
3 years ago
6

1. What changes occur, in reference to the circulatory system, when you exercise?

Biology
1 answer:
allsm [11]3 years ago
7 0

Answer:

Exercise causes the heart to pump blood into the circulation more efficiently as a result of more forceful and efficient myocardial contractions, increased perfusion of tissues and organs with blood, and increased oxygen delivery.

Explanation:

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All sulfate minerals contain the elements___. Apex
Paladinen [302]

Answer:Sulfur atoms bonded to oxygen atoms. Like halides, they form where salt water evaporates.

Hope this helps

6 0
3 years ago
Explain three reasons that stewardship of earth's resources is important
balandron [24]
1) We must ration out the oils because we will be running out before 50 years & we must have new technology to replace the Fossil Fuels. 
2) If we allow the World's resources to be used as fast as they are then at some point we will run right out of that resource forever. 
3) There should be someone to take responsibility for the mining and usage of the World's resources before its too late and it should not be too long before we reach the point.
5 0
4 years ago
Assume you need to remove all of the microbes from a very large volume of liquid. Which method below would be the most effective
Leviafan [203]

Answer: a. autoclaving

Explanation:

Autoclaving is the technique of sterilization. The autoclaves are set at a particular time and temperatures. The two parameters are necessary for the proper functioning of the autoclave. The standard temperature for the functioning of the autoclave is the 121°C for a time period of 15 minutes.

The time extends according to the increase in the quantity of the autoclaving material, particularly for large volumes of liquid and for more dense materials. It is a benificial and useful technique for sterilizing surgical dressings, glasswares, microbial media, biohazardous materials,and others.

8 0
3 years ago
How does ADH work and what does it do?
olga2289 [7]

Answer:

The correct answer will be option-A.

Explanation:

ADH or anti-diuretic hormone is a chemical messenger produced by the hypothalamus in response to the water level in the blood, maintain blood pressure.

ADH is released in response to the osmolarity of the blood that is a low amount of water which is perceived by the osmorecpetors in neurons. The low level of water leads to the production of ADH from neurons which binds to the ADH receptors in the collecting tubules of the kidneys.

They allow insertion of aquaporins-2 in the membrane which allow re-absorption of the water to maintain the water level of the body.

Thus, option-A is the correct answer.

5 0
3 years ago
If you looked at heart cells, would you expect to see a lot of mitochondria<br> or only a few? Why?
Nesterboy [21]

Answer:

Function of Mitochondria. Just as a car runs on gasoline, your cells run on ATP. ... It's your heart muscle cells – with about 5,000 mitochondria per cell – that contain far more mitochondria than any other organ in body! That's because the constantly-beating heart works harder than any other organ in your body!

8 0
3 years ago
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