The correct answer to this could be numerous words. The most broad term that would fit would be the Cosmos. If you are referring to more specific then you might be saying things such as Ionosphere. That is where Sputnik 1, the first satellite, was launched.
Rumen, reticulum, omasum, and abomasum
Answer:
because,
if somethinggoes wrong it can be dangerous to all
Answer:
no because they do not require oxygen to breath and they are only one celled organisms.
Explanation:
Sex cells only contain one chromosome from each pair. When an egg cell and spermcell join together, the fertilised egg cell contains 23 pairs of chromosomes..
I am 99% sure that is the answer.