Apakah kepentingan unit piawai?

You can tell from this karyotype that the individual is female because the karyotype has two chromosomes labeled

What function does the limb sever in each animal? how are the limb bones of the four animals similar? based on these similarities what can be inferred about the evolution of the four animals.

This is a scaffolding of protein fibers that us sell keep it shape in a cell division and cell movement