Do all organisms give birth to individuals like humans ?

Q. All organisms excrete. Does an individual cell also do it? Give one example.

Q. What do you think would have happened if humans also give birth to a large number of babies at the same time?

Q.

Which of the following organism do not give birth to young ones?

Q. Sometimes cattle or even human beings give birth to their young ones that are having extremely different sets of organs like limbs/position of eye(s) etc. Comment.