In experiment 2, why was the control included in the chemical treatment experiment?

a. to prevent contaminating species from killing the

e. coli

b. to give you a baseline of the expected extent of bacterial growth

c. all the answer choices are correct.

d. to make sure the results were not due to osmotic pressure submit for grading save and finish later

c.all the answer choices are correct.

Explanati on:

Because control are used as a reference to negate the normal conditions of the cells.

because they want 2 and yea

"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."