The reproductive cycle in females is regulated primarily by

The correct answer is estrogen and progesterone.

Explanation:

The primary female sex hormone known as estrogen is accountable for the directive and development of the female reproductive system and secondary sex features. The other essential hormone apart from estrogen is progesterone, it takes part in pregnancy, menstrual cycle, and embryogenesis.  

Both estrogen and progesterone work in synchronized manner to encourage reproductive activity of the female comprising the development and upkeep of the corpus luteum to withstand a fertilized ovum, development of the ovum, preparation of the breasts for lactation, and maintenance of pregnancy.  

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.

answer: c.

explanation: