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katrin2010 [14]
3 years ago
13

Can someone help me please

Biology
1 answer:
svetlana [45]3 years ago
7 0

Answer:

B

Explanation:

because it talks about technology if it said about naturally than u would mention A but in this case it is B.

hope this make sense :)

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. One function of the circulatory system is to help maintain a uniform body temperature. Explain how the constant circulation of
Effectus [21]

Answer:

Capillaries are the blood vessels with the smallest diameter and those closest to the surface of the skin. The blood that circulates through them is therefore closer to the outside air than the blood in the rest of our blood vessels. As the capillary dilates, a greater amount of blood is exposed to the air, which allows it to cool down and our body temperature to be maintained.

Explanation:

Blood is a solution where solutes and cells are found and that participates in homeostatic mechanisms such as the control of body temperature, helping to regulate respectively the preservation and elimination of heat. Blood vessels are the routes of the cardiovascular system, which are responsible for being a means of transport for blood with and without oxygen that reaches all tissues and returns to the heart. In very hot weather, surface thermoreceptors signal the brain that something needs to be done to dissipate heat. For this reason, a vasodilation process is activated, which allows blood to flow to the outermost layers of the skin. This promotes a heat exchange with the environment, which helps the individual to lower their body temperature. Cold causes a decrease in blood flow by reducing the size of the vessel (arteries or veins) through which blood and other substances circulate. By reducing the size of the vessel, the substances that circulate in the blood are also reduced. The heat causes an increase in the size of the blood vessels, which generates greater transport of nutrients through the blood.

7 0
3 years ago
Which statement is true of cancer? A) cancer results when cells stop dividing. B) mutations in certain genes caue tumors. C) tum
laila [671]

I THINK its (A) im sorry if im wrong i tried reading about it

6 0
3 years ago
Read 2 more answers
Answer this please thanks!
laila [671]
1. Anaphase
2. d
3. B
4 0
3 years ago
What is eversion?
enot [183]

Answer:

a. When the foot rolls OUTWARD

Explanation: is correct

8 0
3 years ago
The length of linker DNA segments varies somewhat among organisms. The length of the linker DNA in sea urchin is 110 base pairs.
nasty-shy [4]

Answer:

362 nucleosomes

Explanation:

A nucleosome repeat is made up of the DNA (146 bp) wrapped around the core nucleosome particle and the linker DNA (110 bp as in this situation). We can conclude that, every repeat stands for 256 (146 + 110) base pairs of DNA.

We are given the length of the entire region to be 92,672 bp long,

To determine the number of nucleosomes to organize the region into the 10nm fiber structure

Let,

Number of nucleosomes =

the length of the entire region

------------------- -----

base pairs of DNA.

= 92,672

-------

256

= 362 nucleosomes

Therefore, 362 nucleosomes is needed to structure the region into the 10nm fiber structure.

5 0
3 years ago
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