Give reason if there is no atmospheric pressure what will happen in medical profession

In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the

Just a quick question. will give pointswhat is the root word of "blood."it is written in my homework as hemat(o) : blood.so, should i write that the root word as hemat or hemato or hemat(o). i'm really confused.

Can someone give me the answer to this question? you so much