Evolution 2024

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

Which of the following is an example of a vestigial structure?

• the wings of a red-tailed hawk
• the hind limbs of a house cat
• the fins of sharks
• the tailbone of a human

What do we call a change in a species over time?

• Adaptation

• Evolution

• Extinction

• Environmental influences

Why do embryologist study embryos?

• to see if they are related
• to understand adaptations
• to determine the age
• to learn what parents are vestigial

What is embryology?

• the age of organisms
• the oldest stage of development
• the life span of an organism
• the earliest growth stage of development

Two organisms that are closely related would have

• very similar DNA sequence
• exactly the same DNA sequences
• no proteins in common
• completely different DNA sequence