What are the Reactants of Respiration? a
Water and sunlight
b
Carbon dioxide and Sunlight
c
Food and Oxygen
d
Carbon dioxide and water

c.food and oxygen

Explanation:A and B are wrong because respiration does not need sunlight. D us wrong because CO2 are products if respiration, not reactants.

"menstrual cycle is a complex cycle that consists of several processes. order of occurrence of steps in menstrual cycle are as follows:

1. high progesterone levels maintain the endometrium lining of the uterus.

2. endometrium lining breaks down and low levels of estrogen stimulate the pituitary to release fsh and lh.

3. fsh and lh stimulates the follicles to develop and the oocyte to produce estrogen.

4. rising estrogen levels suppress fsh production and development of other follicles.

5. a spike in lh causes follicle to rupture.

6. a breakdown of corpus luteum causes progesterone level to drop."