Which body system is most responsible for the removal of waste?

How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain

Look at the photo of the leaf. which term best describes this leaf?

Indicate the coat color and the proportion of offspring with that color for each of the following crosses of rabbits. assume all are homozygous. chinchilla x albino a) all chinchilla b) 1/2 chinchilla, 1/2 albino c) 3/4 chinchilla, 1/4 albino