Question

пжжжжжж 4 срочнооооооо​

Answer 1

Ответ:

Объяснение:

1) heart

2) because it has to send more blood to your muscles

3) when you exercise, your brain sends more blood to your brain, too and you learn more quickly, feel happier and more relaxed, you sleep better

4) they become weaker

5) 206

6) 52