Evolution

Front

What is natural selection?

Back

Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring.

Front

Define evolution.

Back

Evolution is the change in the heritable characteristics of biological populations over successive generations.

Front

What is a species?

Back

A species is a group of organisms that can interbreed and produce viable and fertile offspring.

Front

What is an allele?

Back

An allele is a variant form of a gene that can result in different traits.

Front

What does 'survival of the fittest' mean?

Back

It refers to the idea that individuals best suited to their environment are more likely to survive and reproduce.

Front

What is genetic drift?

Back

Genetic drift is a mechanism of evolution that refers to random changes in the frequency of alleles in a population.

Front

What is gene flow?

Back

Gene flow is the transfer of genetic material between populations, which can affect allele frequencies.

Front

What is adaptation?

Back

Adaptation is a trait that helps an organism survive and reproduce in its environment.

Front

What evidence supports the theory of evolution?

Back

Fossil records, genetic similarities, and observed evolutionary changes in species provide evidence for evolution.

Front

What is the significance of Charles Darwin's observations?

Back

Darwin's observations of finches and other species led to the development of the theory of natural selection.