During what phase do the nuclei reform

it has one origin of replication, but it proceeds in two directions - d)

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.

the electromagnetic energy from the sun arrives in the form of visible and invisible light.