I’m pretty sure it’s hydrogen if I’m wrong I’m really sorry
Chromosomes are lined up in the middle of the cell during metaphase.
Answer:
its like your own land but only sertin people can go on it... I'm no tired sure tho thats what I think it is
Explanation:
if I'm right mark me has brainliest??
Answer:
The cardio-respiratory system works together to get oxygen to the working muscles and remove carbon dioxide from the body. During exercise the muscles need more oxygen in order to contract and they produce more carbon dioxide as a waste product.
Explanation: