Because sexual reproduction is faster than asexual reproduction. The water flea would have to inseminate itself somehow with asexual, but sexual reproduction is faster in terms of the male can inseminate many female fleas at once.
Answer:
I think it's interferon.
Explanation:
Interferons are substances produced by cells in the body to help fight infections and tumors. So, it would make sense if they don't have interferon, with severe combined immunodeficiency.
Answer:
A: Event in the normal life cycle of a cell
Blood vessels that have thinner walls that are more likely to collapse when blood is withdrawn during a venipuncture are called veins.
Differently form arteries, veins are blood vessels with thin, less muscular walls. Veins have thinner walls because the blood pressure in them is much lower.
So, as a result of common intravenous injections (such as venipuncture), collapsed veins might occur. Veins are then temporarily blocked.
When the pancreas is stimulated it releases Insulin. insulin helps store sugar in throughout the body.