Select all that apply. if you wanted to try and identify or classify archaea or eubacteria, you would
-study their habitat
-study their genetic make-up
-study their shape and arrangement
-conduct gram staining
-study how they gain energy and nutrients
-study how they move

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.

the fossil record provides evidence of a common ancestor to many species.