Why are coral reefs overexploited??? a. Coral is an important food resource.

b. Coral and its organisms are valuable commodities in the aquarium industry.

c. Coral reefs inhibit recreational activities.

d. All of the above

What percentage of light hits earth's surface directly?

Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?

Punnett squares are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring. an incomplete dominance cross is performed between a bird that is homozygous for red feathers and a bird that is homozygous for blue feathers. purple offspring result. then, two of the purple offspring are crossed. according to the punnett square for this cross, how many of the offspring from the second cross will have a feather color that results from incomplete dominance? 1 in 4 2 in 4 3 in 4 4 in 4