Evolution Review

Structures that may have similar function but do NOT come from common ancestors

• analogous structures

• homologous structures

• pharyngeal pouches

• vestigial pelvis

Which is an inherited trait that increases an organism’s chance of surviving and reproducing in its environment?

• adaptation

• camouflage

• natural selection

• variation

William discovered that two modern-day species have very similar DNA. He concludes that the two species are closely related. What type of evidence did William MOST LIKELY use to reach his conclusion?

• fossil evidence

• DNA evidence

• structural evidence

The diagram below shows a model of the proposed relationship among some groups of mammals. Which of these organisms is MOST CLOSELY related to whales?

• camel

• bison

• hippo

Which is true about the Theory of Natural Selection?

• Not all organisms that are born survive to reproduce,

• Organisms compete with each other to survive.

• Variations exist among organisms.

• All of answers are true.

Wisdom teeth have no purpose and are often removed to make room for the other teeth. Wisdom teeth are

• homologous structures

• vestigial structures

• analogous structures

Why do woodpeckers have long beaks to dig into trees for insects?

• As insects became more common, birds that ate more insects grew longer beaks.

• The long beak is an adaptation that helps the bird eat more insects.

• A harmful mutation occured.

• The long beak helps woodpeckers fight off predators.

Many animals who live where it snows have fur. Explain how white fur makes surviving in the snowy environment easier.

• Orange fur make them easier to spot.

• White fur allows them to better blend in with their habitat.

• The color of fur doesn't effect an animals chance of survival.

• White fur is cooler then other fur colors.

Explain how the fossil record is evidence for the scientific theory of evolution.

• It proves what future species of animals will look like in the future.

• It shows that extinct animal have become a fossil through selection.

• It shows that extinct species share similarities with current species.

• It allows scientist to compare fossils from the past to undiscovered fossils.

The pictures are from different types of animals. What can be said about them that is true?

• They all have different bones, which implies that they all share a different ancestor.

• They all have different bones, which implies that they all share a common ancestor.

• They all have similar bones, which implies that they all share a different ancestor.

• They all have similar bones, which implies that they all share a common ancestor.