6. How do the properties of elements compare to the properties of the compounds they form?
a. The properties of the elements may differ from the
properties of the compounds they form.
b. The properties of the compound are always the same
as the elements that are in the compound.
C. The properties of the compound will change only if
the elements in the compound are exposed to hear
d. The properties of the compound are the same as the
properties of the individual atoms in the compound,

prokaryotic cells do not have a nucleus in which the dna is stored in, it floats freely inside the cell.

eukaryote cells do have a nucleus in which the dna is stored in.

c is the answer : )               your welcome

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.