Human skin becomes dry during winter, making it more prone to infections than during summer. how do the sebaceous glands protect the skin normally?

What is the period of cell life when it is conducting

Can a trait be both polygenic and have multiple alleles? explain why or why not.

How does the fossil record provide evidence that the modern whale evolved from the anthracotheres? a) the modern whale looks like their ancestor the anthracotheres. b) the modern whale has all of the same structures as their ancestor. c) there is not enough evidence to suggest the the modern whale evolved from the anthracotheres. d) the anthracotheres has a structure that is still present in the modern whale, but is no longer of use to the modern whale.