What happens to a spermatid to change it into a sperm cell? O Meiosis occurs, making a cell with n chromosomes.
The nuclei of two polar bodies fuse, making a cell with 2n chromosomes.
O A tail is added, making the sperm a motile cell.
O Amembrane hardens, making the sperm a nonmotile cell.

Which of the following are evidenced-based behavioral interventions for decreasing behavior? fct differential reinforcement pvt time delay a and b

Why is it incorrect to say that mitochondria function only as energy factories with cell

Guinea pig coat color is determined by a single gene. the allele for black coat color is dominant to brown. in a cross between twoblack-haired guinea pigs, 20 offspring are born. if both parents were heterozygous, probability would predict that approximately howmany of the 20 offspring would have brown hair?