What was one of the ways that people of ancient times classified plants and animals? a) by use b) using a dichomous key c) using genetic analysis d) by color

Natural selection changes allele frequencies because some survive and reproduce more successfully than others.

Gram-negative bacteria have a cell wall that is! and does not accept the stain, making itappear

Atest cross can be used to -predict the phenotypes of a monohybrid cross -predict an unknown genotype of a purebred dominant plant -cross-breed dominant and recessive plants -give probabilities that a trait will appear