Which statement is true about a cell wall but not a cell membrane?
a). it forms the outer layer of a cell
b). it gives an animal cell its shape
c). it is selectively permeable.
d).it is made mostly of cellulose

Answer;

D). It is made mostly of cellulose

Explanation;

-Cell walls and cell membranes differ in a number of ways, which include; Cell wall is found in plant cell and cell membrane is found in animal cells, cell membrane is covered by the cell wall which forms the outer most covering, cell wall is completely permeable whereas cell membrane is semi-permeable, cell wall is made up of cellulose and cell membrane is made up of lipids and proteins and Cell membrane is also known as plasma lemma.

a

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.