Science Category 4 Part 2 1-15

1.Which of the following changes would most likely benefit baleen whales?

• A.An increase in the krill population

• B.A decrease in the size of plankton

• C.An increase in the size of manta rays

• D.A decrease in the plankton population

2.Which of these would best complete this food chain?

• F.Hawks

• G.Grapes

• H.Toads

• J.Mice

3.In order for tomato plants to make their own food, their leaves must absorb —

• A.rain

• B.sunlight

• C.oxygen

• D.minerals

4.Look at the marine food web below. What do seals eat?

• F.Herring

• G.Salmon

• H.Seabirds

5.What type of energy do plants use to make their food?

• A.Energy from electricity

• B.Energy from the sun

• C.Energy from sound

6.Look at the food chain below. Which is the producer in this food chain?

• F.Mice

• G.Owls

• H.Grass

7.Which is an example of how a forest animal adapts to living in a city?

• A.A bird makes a nest under a bridge.

• B.A monkey swings from a tree branch.

• C.A bear catches a fish in a stream.

8.How do birds help plants spread to other places?

• F.They sing to birds in other areas.

• G.They eat worms under trees..

• H.They drop seeds in different areas

9.The picture below shows a frog in a pond containing duckweed. Which of these human activities would most likely cause an overgrowth of duckweed in a pond environment?

• A.Gradually introducing geese into the pond

• B.Fishing in the pond as recreation

• C.Planting trees in nearby forests

• D.Heavily fertilizing nearby farm fields

11.In residential areas of Allen, Texas, overpopulation of rabbits has become a major problem. They eat plants used in landscaping around homes and businesses. Residents have used traps and other means to control the rabbit population. What could have caused this overpopulation in this suburban town?

• A. People keep letting their pet rabbits go when their children get tired of them.

• B. Rabbits prefer to live around humans for companionship.

• C. Rabbit predators have been forced to relocate due to human development.

• D. Rabbits have adapted and changed their diet from carnivore to herbivore.