Escherichia coli, or e. coli, is a species of bacteria. entamoeba histolytica, or e. histolytica, is a single-celled amoeba. what do e. coli and e. histolytica have in common? select all that apply.

a. they depend on sources of energy or food.

b. they are unable to respond to changes in their environment.

c. they maintain homeostasis by cell specialization.

d. they reproduce.

b c a d mark me

preservation because he preserves part of the land and preserves means save

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.