Quarter 4 Science 3.10 Major 2

Why do more Alabama beach mice that live in the sand dunes have light-colored fur than dark-colored fur?

• They are able to find more food than mice with dark-colored fur.

• They choose to mate with other mice that have light-colored fur instead of dark-colored fur.

• They stay cooler during hot summer days, so they are more likely to stay alive and have young than mice with dark-colored fur.

• They are harder for hunting animals to see in the sand, so they are more likely to stay alive and have young than mice with dark-colored fur.

Students observed rose bushes. Each rose bush had a different number of thorns. They wrote down how many times animals tried to eat the rose bushes. What do these observations show?

• Thorns fall off of a rose bush when animals eat it.

• Thorns stop animals from eating the rose bush.

• Animals like to eat rose bushes that have thorns.

• All rose bushes have the same number of thorns.

Scientists want to know if birds that sing more also lay more eggs. They watched a group of birds and wrote down how much each bird sang. What else should they observe?

• The color of the feathers of the birds

• How high each bird can fly

• The kind of trees where birds build nests

• The number of eggs in each bird’s nest

Select the statement that most likely describes the reason why wild roses have a better chance to survive in the same environment as the thornless roses.

• Wild roses have thorns to protect them from being eaten by animals.

• Wild roses absorb more water through their thorns.

• Wild roses have colors to attract animals and insects.

• Wild roses use their thorns to produce more food.

A scientist studying warblers captures six of them in a net. Two of the birds have bands on their legs. What could the scientist learn from the information on the bands?

• How much food the birds eat.

• Where the birds travel.

• Which birds are related.

• What kinds of nests the birds build.

A green tree frog lives in a forest. How does the frog's green color help it to survive?

• By helping the frog find other frogs.

• By keeping the frog cool.

• By making the frog hard to see when sitting on leaves.

• By allowing the frog to make its own food.

There are many kinds of warblers throughout the world. One kind of warbler with black-and-white feathers are often seen on tree trunks. Another kind with golden-colored feathers is often seen in fields.

• The color of the feathers helps the birds locate nests.

• The color of the feathers helps to control the amount of body heat the birds lose.

• The color of the feathers blends into the birds' surroundings and helps the birds avoid predators.

• The color of the feathers attracts the kinds of insects the birds like to eat.

Which of the following statements best describes what will most likely occur to the moth populations in the image below?

• The light moths will be captured by predators more easily than the dark moths, and the population of dark moths will rise.

• The light moths will be captured by predators more easily than the dark moths, and the population of light moths will rise.

• The dark moths will be captured by predators more easily than the light moths, and the dark moths will probably go extinct.

• The light moths will change their wing color to match that of the dark moths.

__________ a characteristic that helps animals blend in with the surrounding environment and increase their chances of survival.

• camoflague

• trait

• mate

• individual

Suppose a certain species of insect lives in the lush green canopy of the rainforest. Some of the insects are bright green in color, and some are bright yellow. Assume there is a natural predator of the insect in the area. What do you expect to happen to the populations of the green and the yellow insects over time?

• The green insect population will increase and the yellow insect population will decrease.

• The green insect population will decrease and the yellow insect population will increase.

• Both insect populations will remain constant over time.

• Both insect populations will increase over time.