Which best describes a difference between prokaryotes and eukaryotes?
a. prokaryotes are much larger cells than eukaryotes.
b. prokaryotes do not contain ribosomes.
c. eukaryotes do not contain cytoplasm.
d. prokaryotes do not contain organelles.

italy's population growth rate is almost at zero, the national statistics agency, istat, said on monday, mainly due to a dwindling birth rate.

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 : )