Having two of the same alleles of a gene.
Homozygous
What is the force which favors the survival of animals with traits that help them survive and reproduce?
Natural selection
an innate behavior
Which dog breed has a skull that is too small for its brain as a result of selective breeding?
Cavalier king charles spaniel
The traits the organism displays (PP= genotype, purple= _____)
Phenotype
Evolution happens at what pace?
Can be slow or fast, depends on the generation time of the species.
Any sensory input that causes a behavior or reaction of some kind
stimulus
What kind of traits can breeders selectively breed for?
Heritable traits
Why do whales have hips?
They have an ancestor that was a land mammal
Behavior that must be taught through observation and/or practice
Learned behavior
What is purebred sometimes synonymous with?
Inbred
Why does evolution not make a perfect organism?
There are always trade offs
Flying is what type of behavior?
Both innate and learned
Neither trait is dominant over the other and the two blend together.
Incomplete Dominance