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12345 [234]
3 years ago
9

HELP!!! I WILL GIVE BRAINLIEST!!!

Biology
1 answer:
egoroff_w [7]3 years ago
6 0

Answer:

option A is the right answer for this que

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How many capillary beds must a red blood cell pass through to move from an artery in the left arm to the left ventricle of the h
MArishka [77]

Answer:

two capillary beds

Explanation:

Capillary beds are networks of capillaries that supply blood to the organs and/or areas of the body, in which nutrients and gas exchange (i.e., O2 and CO2) between red blood cells and tissues take place. Smaller arteries (i.e., arterioles) diverge into capillary beds composed of 10 to 100 capillaries, the smallest blood vessels in the body that connect the arterioles and the venules. Red blood cells usually flow into a capillary bed from a metarteriole (i.e., a microvessel that connects arterioles and capillaries). Red blood cells sometimes pass through two capillary beds before reaching the heart. The left heart ventricle is a muscle required for pumping red O2-rich blood out through the aortic valve into the aorta, whereas arteries are large blood vessels that branch into arterioles in order to carry blood to the capillary beds.

6 0
3 years ago
How much cooler are sunspots than the sun
Akimi4 [234]
Sunspots appear dark (in visible light) because they are much cooler than the rest of the surface of the Sun. However, even though they appear dark, they are still very hot.
7 0
4 years ago
Which kind of organism is an autotroph?
trasher [3.6K]
The answer would be algae or phytoplankton
3 0
4 years ago
Read 2 more answers
B Explain why animals need plant biomass.
Burka [1]

Answer:

its in the type of nutrience they have

Explanation:

5 0
3 years ago
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List three reasons why it is better to process the animal faeces than to wash it away with a hose
mrs_skeptik [129]
Washing would only transfer the waste somewhere else, it wouldn't actually "clean".
processing it could be used to make bio gas.
that bio gas can be used as fuel. or it can be used to make manure.
4 0
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