heterozygous for sickle cell anemia will have half of their red blood cells misshapen and the other half normal. identify the type of complex inheritance

its 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.

a physical change is being made.

d. organisms have cells with different shapes and functions.