both plants and animals begin life as a single cell, a zygote. a zygote contains chromosomes from each parent. explain.

Which statement is true about the cell theory? a) it is well-supported by evidence. b) it is unchangeable and permanent.

Areal dna molecule consists of thousands of these pairs of nucleotides. what is the pairing arrangement of the nitrogen bases

What is gene flow? apexa: selection for average traits b: when a population splits in twoc: a mutation becoming more commond: genes moving between two populations