Unit 6 Natural Selection

Fitness refers to strength and speed.

Extinction describes when a species....

Select the statement which is true because of comparative embryology.

Darwin did the majority of his studies on the Hawaiian islands.

The human appendix is an example of a vestigial structure.

_____ is a change in traits over time, _____ is a trait that improves an organisms ability to survive and reproduce.

Embryological studies suggest that all organisms come from a common ancestor.

Which of the following is not evidence for evolution?

_____ is blending in with the environment, while _____ is resembling another species.

Bird wings and insect wings are homologous structures.

Evolution can be defined as...

The phrase we use when talking about organisms with traits better suited for the environment.

Select which is mimicry.

High fitness = more likely to pass on genes

Select which bird trait is an example of a derived trait.

What do we call a structure shared between animals that are different, but share the same function?

The theory of continental drift explains how organisms are distributed around the world. This is called...

Which of the following describes the process of natural selection?

Breeding dogs is an example of...

Human forearms and whale fins are homologous structures.