The spinal cord has input and output connections to the rest of the body via the nervous system.

What are some natural processes that represent physical and chemical changes?

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

In general, characteristics that an organism survive and reproduce become more common in a population over time. what mechanism of evolution cause this change?