sci review

Which organisms are consumers that feed on other consumers? Select TWO correct answers.

• Snail

• Frog

• Snake

• Cricket

• Bacteria

A partial food web of a pond ecosystem is shown below. Which type of organism is missing from this food web?

• Decomposers

• Producers

• Predators

• Consumers

A desert food web is shown. How many carnivores are represented in the desert food web?

• A. 2

• B. 3

• C. 4

• D. 5

Look at the image. How does energy flow through this forest food web? Select TWO correct answers.

• A. Plants use light energy from the Sun to make food.

• B. All organisms use sunlight to make their own food.

• C. Only animals use energy from the Sun for food.

• D. Energy moves from plants to animals.

• E. Producers use energy from consumers for food.

A partial wetland food web is shown. Which statement correctly describes the transfer of energy in a food chain in this wetland?

• A. Energy is transferred from hawks to shrews to grasshoppers to marsh grasses.

• B. Energy is transferred from marsh grasses to crickets to hawks to frogs.

• C. Energy is transferred from grasshoppers to crickets to frogs to hawks.

• D. Energy is transferred from cattails to crickets to shrews to hawks.

Which of these BEST describes a food web?

• A. A food web is the relationship between a predator and its prey.

• B. A food web is the number of producers available in an ecosystem that feeds any single consumer.

• C. A food web is a list of all the consumers in any specific ecosystem.

• D. A food web is a complex combination of many different food chains in any ecosystem.

The food web below shows animals in an arctic marine ecosystem. Which organism receives its energy most directly from the squid?

• A. Seal

• B. Krill

• C. Cod

• D. Phytoplankton

A partial forest food web is shown. In this food web, matter is transferred directly between —

• Conifer seeds and Red crossbills

• Conifer leaves and Northern goshawks

• Blue grouse and Wolves

• Elk and Sharp-shinned hawks

A forest food web is shown below. Which organisms illustrate the flow of energy in the food web? Select TWO correct answers.

• Mouse → owl → frog

• Grass → rabbit → fox

• Fox → mouse → grass

• Grasshopper → frog → snake

• Snake → bird → grasshopper

What can Mateo conclude about the environment of the Guadalupe Mountains millions of years ago?

• The area was a sandy desert.

• The area was covered with grass.

• The area was a pine forest.

• The area was underneath water.