Students made a claim that living things are made of cells, and non-living things are not. Which or these would be the best method to test their claim? A. Compare the organelles contained in cells.

B. Observe living things using a hand lens.

C. Use a microscope to look for cells in a variety or things.

D. Observe a whether a variety of specimens move on their own.

answer: all : )

explanation:

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.

fkk you n*gga

i think the answer is a.keratin is the pigment responsible for skin color.