How are the feeding methods used by sea urchins and sea stars similar and different?

Sea urchins use five-part jawlike structures to scrape algae from rocks. Sea lilies use tube feet along their arms to capture floating plankton. Sea cucumbers move like bulldozers across the ocean floor, taking in sand and detritus. Sea stars usually feed on mollusks such as clams and mussels.

Explanation:

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.

c. live where it’s cold and icy