Only one foal per year.
Zebras reproduce sexually, so zebras do have fathers.
Chlamydiae reproduce by binary fission, producing two offspring.
On the African plains.
Fertile offspring are offspring of parents which can continue to reproduce (for example Humans). However you can also get infertile offspring which cannot reproduce (an example of this is a mule, but it is not always the case.
Species can only breed with one of their own species, however there are rare occasions were the species are close enough that they can breed, however the offspring can not reproduce, i.e. a donkey.
A species is the set of organisms which can reproduce and produce fertile offspring.
Yes, they do help.
the offspring is identical to one another
To be biologically fit means you have the adoptions to survive and you are able to reproduce offspring that can reproduce lots and lots of babies (offspring)!
The simple answer is to "Procreate" is to "Reproduce" as in "make more babies"
Reproduce offspring
reproduce