Unit 12 Evolution

The theory of natural selection states that all living things evolved from a common ancestor. True or False?

• True

• False

Which evidence of evolution is most useful in following relationships between species?

• DNA evidence

• Anatomical evidence

• Behavioral patterns

• Bio-geographical location

Butterflies with large wings can fly away from predators faster. If a butterfly has small wings, it won't be able to fly fast enough and will most likely be eaten at a young age. Which is most likely going to happen to the butterfly population?

• Small wing butterflies will stay the same in number.

• Large wing butterflies will decrease.

• Small wing butterflies will increase.

• Large wing butterflies will increase.

If an organism is surviving in it's environment and thriving, which of the following is most likely true?

• They have better adaptations than other organisms.

• They have a longer life cycle than others.

• They are larger and dominate other organisms.

• They have been living their for the longest period of time.

What is speciation?

• Differences among a species.

• The ability to interbreed with another organism

• Formation of a new species

• Adapting to the environment

Which of the following is NOT an example of geographical isolation?

• A mountain range rising

• A river changing course

• Food source becoming unavailable

• Earthquake causing land to split

What is a homologous structure?

• Same structure, different function

• Different structure, same function

• A structure with no function

What is an analogous structure?

• Same structure, different function

• Different structure, same function

• A structure with no function

What is a vestigial structure?

• Same structure, different function

• Different structure, same function

• A structure with no function

Female birds prefer mating with male birds that have either long tails, or very short tails. Which of the following graphs shows the population of birds after a few generations?

• A

• B

• C

• d