Question

I fill in the blanks. (4)
1)breathing involves the movement
of the........ and the.........
2) cellular respiration takes place in
the.......... of all organisms.
3) insects have a network of air tubes
called............ for gas exchange.
4) during heavy exercise we get
cramps in the legs due to the
accumulation of..........
wind​

Answer 1

Explanation:

Write the omitted words man is basically animal the instinct of fighting is

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Answer 2

Answer:

1 lungs

3 spricle

Explanation:

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