Enzymes have an optimum temperature at which they work best. Temperatures above and below this optimum will
decrease enzyme activity. Which graph best illustrates the
effect of temperature on enzyme activity?

In the family tree below, people with the recessive trait of attached earlobes are shaded gray.

Ecosystems involve living organisms interacting with non-living things in a productive way; how is photosynthesis an example of this? answer, i will give brainiest to first person to get it right.

Guinea pig coat color is determined by a single gene. the allele for black coat color is dominant to brown. in a cross between twoblack-haired guinea pigs, 20 offspring are born. if both parents were heterozygous, probability would predict that approximately howmany of the 20 offspring would have brown hair?