Acaterpiller eats the leaf and a bird eats the caterpiller in this interaction the bird is a?

this protocol provides a detailed procedure for nucleoprotein extraction from cultured cells and tissues in an efficient manner.

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).