Achemical imbalance in the body can cause the heart to stop pumping blood, which in turn will cause other tissues and organs to cease functioning. this observation supports the view that

all levels of organisation within an organism are interdependent

Explanation:

An organism has different levels of organization within itself that, the levels are s follows: cell > tissues> organs> organ systems and there are further different organ systems present within an organism.Even though the organisms have a different level of organization, still there is an interdependence amongst these levels and all these different levels have to coordinate and work together so that the body can function normally. Therefore, a chemical imbalance in the body which may occur due to the nervous/endocrine system can cause the heart to stop pumping blood which is, in turn, a part of the cardiovascular system and this may further affect other tissues and organs and these may stop functioning. Thus this clearly shows how different levels coordinate and work to carry on norma functioning of the body.

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. 

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