Review: Unit 4 - How Ecosystems Work

Which type of organisms conduct photosynthesis?

• Carnivores

• Herbivores

• Producers

• Omnivores

Carnivores, herbivores, and omnivores are. . .

• Species

• Producers

• Autotrophs

• Consumers

Organisms need _____ to survive, grow, and reproduce.

• Energy

• Shelter

• Oxygen

• Matter

Which of the organisms below are producers?

• Plants

• Algae

• Some bacteria

• All of the above.

Where does all energy in an ecosystem originate?

• Plants

• Sun

• Food

• Organisms

What kind of organisms breaks down the waste and remains of organisms too return nutrients back to the soil?

• Plants

• Decomposers

• Top Predators

• Omnivores

The process of breaking down carbohydrates to yield energy is called. . .

• Photosynthesis

• Cellular Respiration

• Breathing

• Heterotroph

True or false:

All living things conduct Cellular Respiration

• True

• False

Energy is ______ each time an organism gets eaten by another organism.

• increased

• created

• destroyed

• transferred

This image is an example of. . .

• Food Web

• Energy Pyramid

• Food Chain

• Ecosystem