23.2 Natural Selection

Cies

________ are more likely to survive in different environmental conditions.

David Lack

________ studied a small in 1947.

successful parents

A new not contributing many individuals to the next generation is a way that directional selection may arise. The most ________ are those that produce an intermediate clutch new allele, which may confer a higher fitness in individuals that carry it size.

Natural selection

________ can produce fertile individuals that are more physically fit than less fertile individuals.

Birds

________ have lower fitness values than those that lay an intermediate number.

dark brown individuals

The ________ mouse is more fit than the light colored mice.

quantitative measure of reproductive success

What is fitness? Answer with a single words or term.

climate change

What is irreversible? Answer with a single words or term.

fitness values

The ________ are marked by the 1.

effects of natural selection

The ________ can be seen at the independently proposed theory of evolution by natural selection.

Natural selection

________ is likely to contribute to the genes pool, but not evolution.

Natural selection

________ increases the mean fitness of the population and causes differences in the DNA sequence.

Natural selection

What is called in the living environment? Answer with a single words or term.