The process of sexual reproduction starts with?
A. The release of the egg cells into the sperm cells.
B. The release of egg cells into the urethra of the male.
C. The release of sperm cells into the females reproductive tract.
D. The release of male egg cells into female sperm cells.

C

Explanation:

The answer is not A because egg cells do not get released into sperm cells but it is the exact opposite that occurs for sexual reproduction.

Not B because egg cells remain inside a woman's body and does not get released to urethra of male.

The answer is C because during intercourse, male release sperm cells to the cervix of female for the egg to fertilize the sperm in uterus of female.

Not D because males don't have eggs and have sperm. Whereas, females have eggs and not sperm.

both anaerobic and aerobic respiration use glucose (or other carbohydrates), proteins and lipids to produce atp and nadh. cell uses those energy molecules, obtained from food and   breaks them down during the chemical reactions of respiration. in anaerobic respiration, nadh is regenerated to nad+ by enzymes lactate dehydrogenase (lactate is produced, e.g. in muscle cells) or by alcohol dehydrogenase where ethanol is produced (alcohol fermentation), while in aerobic respiration, electrons from nadh are deposited in the mitochondria to regenerate nad+ (electron transport chain. anaerobic respiration produces 2 atp per molecule of glucose compared to aerobic respiration where about 38 atp molecules are produced.

i believe the answer is a or 1