Select all of the following responses that are TRUE (Select all that apply) A:Cells can be created out of nothing
B:Cells can reproduce sexually (with other cells)
C:Cells don't always have to come from other cells
D:Cells can reproduce asexually (by themselves)

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

"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."

archaebacteria are found in in forest soil.

hope i spelled it right lol

hope i

-lavira: )

the circled areas are referred to   as sunspots.   the sunspots are cooler than the   surrounding area.

sunspots are temporary phenomena on the photosphere of the sun that appear visibly as dark spots compared to surrounding regions. they correspond to concentrations of magnetic field flux that inhibit convection and result in reduced surface temperature compared to the surrounding photosphere.