Answer:
females typically have two x chromosome while males have one x and one y. i.e mothers are x
The correct answer is -the time required varies considerably.
The evolutionary processes are still going on in all of the populations of living things on Earth. The time needed for a new species to form depends greatly on the type of organism and the environmental pressure. Some organisms reproduce quickly, like bacteria for example, and the process of speciation is much faster for those organisms than for example mammals or plants.
