There are three types of polar bears: one with thick coats, one with thin coats and one with medium coats. It is fall, soon to be winter. The temperatures are dropping rapidly and the bears must be kept warm, or they will freeze to death. Many of the bears have had 2 cubs each but due to the extreme temperatures, many mothers only have one cub left. What is the variation in the population?
Explanation is in the file
Polar bears and black bears are part of the same family.
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.
the index of refraction of the second medium is higher. i just took the test trust me !