Evidence of Common Ancestry

Which evidence of common ancestry is being studied in this visual?

• biogeography
• fossil record
• anatomical homology

The Galapagos Islands, a small group of islands off the coast of Ecuador, is home to reptiles such as the giant tortoise and the iguana. The eastern islands are much older than the islands to the west.  Which statement about the origin of these reptiles is best supported by this information?

• The ancestor of each species came from different continents at different times.
• The common ancestors of the reptiles probably came from Equador.
• The common ancestor of each species evolved in Peru and came to the islands at the same time.

Which evidence of common ancestry is being studied in this visual?

• biogeography
• fossil record
• anatomical homology

The process by which populations slowly change over time is called__________

• selective breeding
• adaptation
• sepeciation
• evolution

What can a person gather from studying fossil record and its evidence?

• similarities between past and present species

• how organisms will evolve in the future

• every plant and animal species that has ever lived

• origin of species and life on the planet

According to this cladogram, birds are LEAST related to -

• Amphibians
• Sharks
• Ray Finned Fish
• Crocodiles

On the cladogram, which organism is the closest relative of the human?

• Frog
• Hare
• Caiman
• Parrot

How many chromosomes do you have?

• 23

• 24

• 16

• 21

Which condition is essential for natural selection to result in a new species?

• Unlimited resources

• An inherited variation

• A static enviroment

• A long life span

According to the diagram, which species changed the least over time?

• bees

• beetles

• flies

• aphids