Gerald is lightheaded and tired from a lack of oxygen in his tissues. what is most likely the reason he feels this way? a. his plasma level is high. b. his white blood cell count is high. c. his platelet count is low. d. his red blood cell count is low.

His red blood cell count is low, so Gerald is feelign lightheaded and tired.

D

Explanation:

Gerald is lightheaded and tired from a lack of oxygen in his tissues. His red blood cell count is low.

(This type of diagnose is called Anemia)

not the best question format lol but what i think might as scale color is controlled by a single gene with two alleles, the green allele and the yellow allele. when moths that are homozygous for green scales are mated with moths that are homozygous for yellow scales, 100% of the offspring have green scales.