Common Assessment #2 Review

How does having white fur make 

Polar bears more likely to survive in an arctic environment?

• It repels insects

• White fur absorbs more sunlight that black fur

• White fur helps them blend in to their environment

• White fur makes them stand out

What does this graph show?

• The evolved population is mainly light colored

• The evolved population is darker colored

• The original population was not evenly expressed

The forest experiences a fire and many of the trees are burned and blackened. What would the caterpillar population's phenotypes several generations after the fire?

• Dark colored

• Light colored

Why would the population of brown beetles grew more than the green beetles?

• Green beetles were better able to survive and reproduce

• Brown beetles have more predators

• Brown beetles were better able to survive and reproduce

What does this graph show?

• There are significantly more brown beetles than green beetles

• There are more green beetles than brown beetles

• Over time, the green beetle population increased

Which shelf do the youngest/newest fossils belong on?

• Bottom shelf

• Middle shelf

• Top shelf

If a new predator is introduced to an environment, which animal would be most likely to survive?

• Animals that stand out in their environment

• Slow moving animals

• Animals that can go a long time without eating

• Fast animals that blend into their environment

What does the fossil record tell us about animals?

• Shows us how animals have changed over time

• Why species get smaller over time

• Why animals look different

• How animal behavior changes

Why did the moth population change after the Industrial Revolution?

• Soot made it difficult for moths to breed

• Soot allowed dark moths to blend in to their environment

• Light moth population increased

• Dark moth population decreased

The dark colored moth populated ____________ after the Industrial Revolution.

• decreased

• increased