End of Year Review

Organisms that use energy from the sun to make their own food are called

• carnivores.

• consumers.

• omnivores.

• producers.

________ are responsible for recycling matter back into the food web once an organism has died.

• Carnivores

• Decomposers

• Omnivores

• Producers

Plant cells make their own food by taking in

• oxygen and water.

• oxygen and hydrogen.

• carbon dioxide and water.

• carbon dioxide and oxygen.

Using the above scenario, which of these would have the largest amount of available energy? Using the scenario, which of these would have the largest amount of available energy?

• Grass

• Grasshopper

• Snake

• Hawk

What process describes how plants use air, water, and energy from the Sun to make their own food?

• condensation

• evaporation

• photosynthesis

• weathering

Plants provide energy to animals for their life processes by

• providing carbon dioxide.

• serving as a food source.

• receiving energy from the sun.

• providing shelter from weather.

Photosynthesis is used to produce food for plants in the form of glucose. In the process, oxygen is released. As shown in the diagram, plants require water and carbon dioxide (from the air). What else is required for photosynthesis and what role does it play?

• Light is required to provide energy for photosynthesis.

• ATP is required as an energy source for photosynthesis.

• Glucose is required as an energy source for photosynthesis

• Oxygen is required to split water molecules in photosynthesis.

Which of the following organisms is a primary consumer?

• grass

• rabbit

• fox

• snake

Which of the following organisms in competition with the weasel for their food source?

• grass

• rabbit

• fox

• snake

What might happen if you remove a primary consumer from the ecosystem?

• There would be more food for secondary consumers.
• The number of primary consumers would increase.
• The number of plants would increase.
• The number of secondary consumers would increase.