A
A haploid cell formed in the male seminiferous tubules
The reproductive tissues of male and female humans develop similarly in utero until a low level of the hormone testosterone is released from male gonads. Testosterone causes the undeveloped tissues to differentiate into male sexual organs. Primitive gonads become testes; other tissues produce a penis and scrotum in males.
Answer: <u>Aphotic</u><u> </u><u>zone</u>
less than 1% of sunlight penetrates the depths of the waters in the Aphotic zone
Answer:
it orbits the Earths atmosphere
Explanation:
There are six links to the chain of infection, however the reservoir is the correct link to select.
The reservoir includes all the places in the environment where the pathogen or infection lives (this includes people, animals and insects, medical equipment, and soil and water)