Spermatogenesis produces from one original cell.

a.) two diploid cells
b.) two haploid cells
c.) four diploid cells
d.) four haploid cells

What came first the elephent or the crocodile

Plants that have reproductive structures called cones are?

The theories on the expansion of galaxies maybe re-examined to strengthen science should not be tested to strengthen science will weaken scientific knowledge if they change will become laws if they don't change