Which is a reason why meiosis is important to sexual reproduction? Meiosis allows a zygote to grow in cell number. Meiosis doubles the chromosome number in each cell. Meiosis allows for the exact duplication of cells. Meiosis allows for genetic differences between parents and offspring.

Hurry which of these is true about index fossils? a) are very scarcely found b) used as guides in relative dating c) found in the youngest layer of the rock d) used as reference points in absolute dating

Which worm has eyespots that are used to detect light? a fluke b marine worm c planarian d tapeworm

14) whenever diploid populations are in hardy-weinberg equilibrium at a particular locus a) the allele's frequency should not change from one generation to the next, but its representation in homozygous and heterozygous genotypes may change. b) natural selection, gene flow, and genetic drift are acting equally to change an allele's frequency. c) this means that, at this locus, two alleles are present in equal proportions. d) the population itself is not evolving, but individuals within the population may be evolving.