Flow of Energy Test Review

What is the source for all energy in an ecosystem?

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Many environmental factors are required for plants to photosynthesize. Determine which items in the list are NOT necessary for this process to occur. Select TWO correct answers.

• access to sunlight

• access to water

• access to oxygen

• access to carbon dioxide

• access to soil

Which of the following organisms are receiving energy indirectly from the wild grains? Select TWO correct answers.

• Coyote

• Hawk

• Antelope

• Grasshopper

• Prairie Grass

Select the trophic level that receives energy indirectly from the grass.

• Coyote

• Rabbits

• Grass

Select the trophic level that receives energy directly from the grass.

• coyote

• rabbits

• grass

Photosynthesis is the process that uses light energy to make food for organisms. Which of the following are end products made by this process? Select two correct answers.

• Glucose

• Chloroplasts

• Oxygen

• Carbon Dioxide

How did the producers create energy to introduce into the food chain?

• The producers create energy through photosynthesis, converting radiant energy from the Sun into chemical energy.

• The producers create energy by consuming and digesting nutrients.

• The producers create energy through photosynthesis, converting chemical energy from the Sun into mechanical energy.

• The producers create energy by hunting other animals.

What process in the natural world converts radiant energy into chemical energy?

• Respiration

• Condensation

• Diffusion

• Photosynthesis

According to the food web below, what kind of consumer is the hawk if it eats the prairie dog?

• Producer

• Primary Consumer

• Secondary Consumer

• Tertiary Consumer

The equation above describes the chemical reaction that occurs during photosynthesis. What happens to the light energy that is shown in the reaction?

• It is destroyed during the reaction.

• It is released when the reaction is complete.

• It is converted into chemical energy during the reaction.

• It is changed into atoms of carbon and oxygen during the reaction.