Which of the following describes how dna provides evidence to support that life changes over time

a- some animals exhibit similar stages of embryonic development
b- some animals exhibit structural that are no longer used for any purpose
c- some animals exhibit similar genetic code

Although all are true, it is B.

Vestigial structures indicate that the animals evolved from an ancient ancestor.

i am positive it is c. condensing but i may be wrong

"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."