The answer is force because Force is needed to change the direction of a moving mass.
If some living things do not reproduce this could be considered a defect or a genetic mutation in those people. If we take humans for example, if most humans reproduce and some don't because they cannot (if a guy cannot produce sperm) this doesn't mean that he isn't alive, it just means he was born with a genetic mutation which doesn't allow him to produce sperm needed for reproducing.
Answer:
yes, even though they are still intact they can sill build up bacteria/germs.
Explanation:
Hope this helps!
It is an embryo because a zygote is just a cell and it turns into a fetus after 8 weeks
