Answer: Spermatogenesis begins at birth and continues throughout a man's life.
The process in which
haploid spermatozoa develop from germ cells in the seminiferous tubules of the
testis is known as Spermatogenesis. Thus, the process of spermatogenesis start
with mitotic division of the stem cells that is located close to the basement
membrane of the tubules. However, a mature male gametes known as sperm but it
is commonly known as spermatozoa.
The thickness of the uterine lining , becomes very thick...because when the level of hormone progesterone reaches its highest levels. according to Dr.X on yahoo answers.
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A. Hormones
secreted directly into the blood
Answer:
Consumer
Explanation:
A consumer is an organism that eats another organism in order to survive. If a fly eats a deer or any rotting meat it is a consumer.
The answer is
B, a euglena uses a flagella in order to move. Euglena is a one celled organism
under the Kingdom Protista. A flagella (or flagellum plural) is a long strand
like structure that is located in the front end part (more like a tail in front).
It flips to the left and right in order for the organism to move. It is
connected to the reservoir, which contains the storage of food for the
organism.
