D. Muscles are the only tissue in the body that can contract, and are responsible for all movement.
Answer:
The nucleus in a cell is like a brain in a human. It is the power house. The nucleus tells everything in the cell what to do and when to do it.
Explanation:
that there once lived humans on mars
Answer:
the water cycle can cause some waters that come from a polluted source to be cycled into aquatic enviroment lowering life quality for the inhabitants. at least i think so
Explanation:
Answer: 1 people would be more vulnerable to disease
2 human or anything wouldnt live as long.
or if this a b c d choice it would risk of decline or extinction
Explanation:
