Potrzebuję zadanie 4 że strony 73 podręcznik English class 6 klasa daje naj

Odpowiedź:
1. the heart
2. Because it has to send more blood to my muscles.
3.Because the heart sends more blood to my brain and then you learn more quickly, feel more relaxed and happier, and also you sleep better.
4. They become weaker.
5. There are 206 bones in my body.
6. There are 52 bones.
Wyjaśnienie: