A) The likelihood that an organism will survive and reproduce successfully in a given environment
B) The ability of an organism to pass on the propensity to produce more offspring
C) The genetic changes that increase the number of offspring produced by an organism
D) The speed at which an organism can produce offspring in a specific environment

A) Genotypes increasing in frequency in a population are under positive selection.
B) Gene sequences must change for natural selection to occur.
C) Selection strength is not affected by the environment.
D) Phenotype must be affected for natural selection to act on genetic changes.

A) Polyploidization
B) Gene loss
C) Horizontal gene transfer
D) Gene family expansion