bio152 final (~95% of entire possible question pool)

Front

What happens to blood vessels in cold temperatures?

Back

Blood vessels that run close to the body surface constrict to reduce blood flow.

Front

How can scientists determine the relationship between two species?

Back

By comparing physical features, DNA, and similarities in embryos.

Front

What is Darwinism?

Back

Darwinism describes biological evolution through natural selection.

Front

What is Social Darwinism?

Back

Social Darwinism misapplies Darwin's ideas to justify inequality in human societies.

Front

Why is competition for resources important in evolution?

Back

It creates the selection that drives evolution.

Front

What is the founder effect?

Back

The founder effect is an example of genetic drift.

Front

What is genetic drift?

Back

Genetic drift is a mechanism of evolution that involves random changes in allele frequencies.

Front

What is natural selection?

Back

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

Front

What is artificial selection?

Back

Artificial selection is the intentional breeding of organisms to produce desired traits.

Front

What is the significance of embryonic similarities in species?

Back

Embryonic similarities can indicate evolutionary relationships, even if adult forms differ.