Horned animals have different sizes of horns. the size of their horns can affect their ability to compete for a mate or provide protection from predators what is this in example of? a) overproduction b) variation c) survival of fit individuals d) none of the above !

they fuse to form they have half as many chromosomes as a somatic cell of the same individual. b

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.