Evolution

Darwin studied....

Select all that apply

• finch beaks

• variations in species

• fossils on the Galapagos Islands

• all of the above

Vocab check:

The theory that organisms have slowly changed over time...

• fossil record

• relative dating

• evolution

• adaptation

Vocab Check:

Relative dating means...

• dating a relative

• comparing two fossils and determining which is older

• Using carbon to identify the exact age of a fossil

• none of the above

True or False? In Natural selection an animal chooses to adapt in a single generation, and survives.

• true

• false

The following evidence supports the theory of evolution: Check all that apply.

• similar body structures in organisms

• Similar DNA in organisms

• population trends

• ancient fossils revealing adaptations of organisms

• natural selection

What is evolution?

• A process by which species of organisms arise from earlier life forms and undergo change over time.

• A theory that explains the origin of the universe
• A process by which organisms develop immunity to diseases
• A theory that explains the behavior of atoms and molecules

Structures that have the same function but evolved independently are called

• homologous

• analogous

• vestigial

• embryological

Structures that are inherited from a common ancestor are homologous.

• True
• False

Some organisms that share a common ancestor have features that have different functions, but similar structures.  These are known as

• vestigial structures
• analogous structures
• homologous structures
• fossil structures

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

• Homologous structure

• Analogous structure

• Vestigial structure

• None of the above