Mi Star 8.1 Bed Bugs

Front

Some traits, caused by mutations, are beneficial, others harmful, and some neutral to the organism.

Back

True

Front

Individual organisms within a species can have _______________ traits.

Back

different

Front

Do all traits make an organism more likely to survive and reproduce?

Back

False

Front

Environmental conditions determine which traits are beneficial, harmful or neutral.

Back

True

Front

Which mechanism introduces new alleles into a population's gene pool?

Back

Mutation

Front

What factor likely accounts for the differing average height among past and present human populations?

Back

Environment Factors

Front

Variations in a population are caused by: Natural Selection, Selective Breeding, Artificial Selection, Random Mutations

Back

Random Mutations

Front

A mistake or change that occurs in the DNA sequence is called a ______________________.

Back

Mutation

Front

What role does mutation play in evolution?

Back

It is the only source of new alleles.

Front

Why is genetic variation important in natural selection?

Back

It provides a range of traits that can be favored or disfavored by natural selection.