The is the combination of alleles that an organism has while
the is physical expression of the gene.*

a) nucleus, cell membrane
b) phenotype, genotype
c) genotype, phenotype
d) trait, genes

What are tissues? a groups of tissues that work together b basic units of structure and function c groups of cells that perform the same function d multiple organs that perform a major function

Explain how the political influence of african americans leaders became weaker.

This rapid change in species that rarely leaves behind fossil evidence is referred to as