In dna replication the next nucleotide is incorporated into the growing polymer at the

it would be the percentage of food eaten by the flock

i remember doing this lab

the answer to your question is sperm

the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

i hope this : )