Which of the following statements about membrane lipids is true?
a. glycerophospholipids contain 2 fatty acids linked to c-1 and c-3 of glycerol.
b. all sphingolipids are glycolipids that lack phosphate groups.
c. galactolipids have 1 or 2 galactose residues connected to glycerol by glycosidic linkages and are predominate in plant cells.
d. sphingolipids are composed of 1 sphingosine (or its derivative), 2 fatty acids, and 1 polar head group.
e. archaea contain membrane lipids that contain 2 long alkyl chains ester-linked to glycerol at both ends.

"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."

ι вєℓινє тнє αиѕωєя тσ уσυя qυєѕтισи ιѕ в. ℓуѕσѕσмє

ι нσρє тнαт ι ¢συℓ∂ нєℓρ уσυ.

answer; benefit; harmed;