Question

fill in the blanks
1) conservations are people who______.
2) ________is necessary for combustion.
3) the most famous poyester used for making fabric is_____.
4) ________is may not help in extinguish fire.
5) _______funcrion similarly to plants in producting their own food.
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Answer 1

Answer:

Effectors

a muscle contracting to move an arm.

muscle squeezing saliva from the salivary gland.

a gland releasing a hormone into the blood.

Answer 2

Answer:

This question is too long, so i can't answer your question.