Speciation can occur as a result of reproductive isolation. Reproductive isolation can occur when individuals?

Question

a. have anatomical features that make it difficult for organisms from the different populations to mate and transfer s*x cells.

b. can't mate with each other because mating occurs at different times.

c. mate with each other but produce offspring that are nonviable.

d. All of the choices are correct.

e. use different types of behaviors to attract mates.

Answer 1

d.

Answer 2

The definition of reproductive isolation is that fertilization is prevented or fertilization results in sterile or dead/dying offspring (in which case, they *already* are a new species, via the common definition of species.)

It's divided into pre-zygotic and post zygotic. A, B, and E are examples of Pre-zygotic reproductive isolation- mating does not occur.

c is an example of post-zygotic isolation.-Mating occurs, but is unsuccessful.

So, d is the best answer- but the important thing is to understand the definition of reproductive isolation. It's pretty simple, as things go- can't or won't mate, and if they do, produce infertile (can't produce offspring) or nonviable (don't live) offspring

Answer 3

I have to agree with the person above - d.

Answer 4

Best Answer+D...