In mendel's monohybrid cross of a purebred
white-flowered plant and a purebred
purple-flowered plant, the f generation
.a. showed only the dominant trait.
.b. showed only the recessive trait.
.c. did not receive any recessive alleles.
.d. remained purebred.

it enhances antibody production by t cells of the adaptive immune system.

hope i'm right

explanation:

geologic time scale (for gradpoint) =)

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.

occluded front i think