Answer:
because of something called mossillization
Your heart has to work hard to pump more blood during exercise for each contraction, accounting for the increase in the systolic blood pressure. Diastolic pressure tends to not change at all or change slightly. The reason for this is that since the blood flow is increased during exercise, our arteries dilate, making the diastolic pressure stay the <span>same, or decrease slightly.</span>
Answer:
A plant cell...
Explanation:
Animal Cell Has no cell wall, and its only plant cell and eukaryotic cell that has all those things
A group of tissues working together is an organ.
ANSWER:
A. an organ
Coal powered cause air polution
