Why do cells, such as Eldea, function in a way that allows substances to enter or exit the cell?

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. 

Hello there.3. which type of muscle has muscle cells that connect to one another at junctions called intercalated disks? a. striated voluntary muscle b. nonstriated involuntary muscle c. striated involuntary muscle d. nonstriated voluntary muscleanswers:   striated involuntary muscle

Since the allele for white petals is dominant, and if one of the parents is a homozygous white petals plant, the offspring would most likely have white petals.