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Vlada [557]
3 years ago
9

Please answer this if u know it, thank you❤️

Biology
2 answers:
Gnoma [55]3 years ago
7 0

Explanation:

answer refer in attachment

omeli [17]3 years ago
4 0

Explanation:

Single circulation is less efficient as gill capillaries slow down the blood flow so the body receives blood at a low pressure which decreases the oxygen supply to the cells.

Double circulation is more efficient as blood at higher pressure especially in humans and mammals

In single circulation only venous blood passes through the heart.

In double circulation mixed or oxygenated or venous blood passes through the heart.

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I don't belev there will b another planet.....they took Pluto off cause it was too small to b co side red as a planet as there r lots of other stars or whatevr that size...I cud b wrong in this idk
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Water has special characteristics because of the nature of hydrogen bonds what are they?
Amanda [17]

Water has special characteristics because liquid water is denser than ice and ice floats on top of liquid water​.

Answer: Option A & D

<u>Explanation:</u>

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