Which conditions change igneous or sedimentary rock into metamorphic rock

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

Asap indicate the coat color and the proportion of offspring with that color for each of the following crosses of rabbits. assume all are homozygous. alleles: a=agouti, c=chinchilla, a=albino, a is dominant over c and a, c is dominant over a agouti x chinchilla a) 1/2 chinchilla, 1/2 agouti b) 3/4 chinchilla, 1/4 agouti c) all agouti

Which phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?