Which of the following is NOT true of evolutionary trees?
A. They are a hierarchy of best to worst organisms.
B. They can show anatomical or molecular differences.
C. They all use different information.
D. They aren't all the same.

is this a psat question, if so do not cheat try your best.

"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."

all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex