Why does sodium and potassium levels in the human body decrease sometimes when the human body is effected by autoimmune disease?​

The image shows the evolution of a species of fish. a few fish from a population developed different social behaviors and evolved into different species. two fish according to the image, the fish underwent . the new species of fish had mating seasons that were different from that of the original fish. because of the differences in mating seasons, the fish underwent reproductive isolation. this mode of isolation would be .

Which individual below would be considered heterozygous? a.dd b.dd c.dd

Where does oogenesis take place ? seminiferous tubules fallopian tubes ovaries uterus