Pallor, shortness of breath, infection, bleeding gums, predominance of immature and abnormally functioning leukocytes, and low numbers of mature neutrophils in a young child may indicate a likely diagnosis of:

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.

well for one plants are always the producer, so a is the answer. a wolf is more of the consumer(predator) and the deer is the prey so i know those two are out of the question. also mushrooms are fungi/fungus so a is the producer.