Two proteins in the same cell perform different functions. This is because the two proteins are
composed of
A. chains folded the same way and the same
sequence of simple sugars
B.
chains folded the same way and the same
sequence of amino acids
C. chains folded differently and a different
sequence of simple sugars
D. chains folded differently and a different
sequence of amino acids

the answer is tropical areas. the tropical areas obtain more

radiant energy from the sun than they lose to space through terrestrial

radiation, and vice versa for polar areas. earth has an energy remaining in the

tropics and an energy scarcity for the polar areas.

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.

the missing space is phylum