1.) The snowshoe hare has the ability to change its coat color. It is brown during the spring, summer, and early fall but changes to white as winter approaches. What adaptation does the snowshoe hare have that allows it to hide from predators?
A. symbiosis
B. commensalism
C. camouflage
D. mutation

2.) A walking stick is an insect that looks like a twig. How does this adaptation help the walking stick to survive?
A. It is small so it needs to eat less food.
B. It is able to stay cooler.
C. It is able to run after prey faster in the trees.
D. Its appearance makes it difficult for predators to see it.

3.) Certain antibiotics are no longer effective against the bacteria that they used to kill. How might this be explained?
A. The number of bacteria is now greater than what the antibiotic can kill.
B. The antibiotic has become weaker over time.
C. Bacteria that were resistant to the antibiotic survived to reproduce.
D. Changes in the environment made the antibiotic ineffective.

4.) Fungi are organisms that live in moist conditions. Which factor can decrease the fungi population?
A. decrease in humidity
B. decrease in temperature
C. decrease in the amount of soil
D. decrease in the amount of sunlight