In a tropical coastal swamp, students came across a mangrove forest with many roots that above the ground. Their teacher explains that they are specialized roots that stick up above the soil and absorb oxygen from the air when the the soil is covered by water. What is the name given to these roots? A)
prop roots
B)
tabular roots
C)
haustorial roots
D)
pneumatophores
E)
contractile roots

"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."

cell division is not regulated in tumor cells.