Enzymes are proteins that increase the rate of chemical reactions inside cells. these proteins are composed of many simpler molecules called amino acids. which of the following suggests that the shape of an enzyme determines the enzyme’s function? a enzymes are specific to a substrate. b enzymes can operate in a wide range of conditions. c enzymes are activated by neighboring molecules. d enzymes can be found in all life-forms.

Nucleus is the organelle that contains chromosomes

The answer would be c, white eyes are homozygous recessive. in the early 1900s, morgan conducted several experiments with vinegar  flies (drosophila). one  sample revealed an anomaly: a  white-eyed, single male fly. he attempted to breed this fly with the typical red-eyed females. the offspring were all red-eyed. using flies from this new generation (brother-sister pairs)  produced some red-eyed and a few white-eyed flies. the white-eyed were all male. in later experiments, he was able to produce white-eyed females. this proved that white eyes are not lethal to either sex (ruling out a and b). since the percentage of white eyes to red eyes is so low, white eyes are not a dominant trait. it would be a recessive trait. 

We are not able to see the stars. light prevents our seeing the stars. i hope it kinda : )

The  answer is 1 amu.