Unit 5 Check for Understanding

Front

What is the definition of Natural Selection?

Back

Organisms that are better adapted to the environment survive to pass traits to their offspring.

Front

What is an Analogous structure?

Back

Structures in different species that have similar functions but different evolutionary origins, such as bird wings and butterfly wings.

Front

What is a Vestigial structure?

Back

An anatomical feature that no longer seems to have a purpose in the current form of an organism.

Front

Define comparative anatomy.

Back

The study of the similarities and differences between the physical structures of two species to determine if an evolutionary relationship exists between them.

Front

What is an example of an Analogous structure?

Back

Bird wings and butterfly wings.

Front

What is Evolution?

Back

The gradual process by which the present diversity of plant and animal life arose from the earliest and most primitive organisms.

Front

What is Selective Breeding?

Back

The process by which humans breed specific plants or animals for desired traits.

Front

What is a Homologous structure?

Back

Structures in different species that share a common ancestry, such as the forelimbs of humans, whales, and bats.

Front

What is Functional adaptation?

Back

A change in an organism that enhances its ability to survive and reproduce in its environment.

Front

What is Structural adaptation?

Back

A physical feature of an organism that enhances its survival, such as the thick fur of polar bears.