Flow of Energy Test Review

What is the source for all energy in an ecosystem?

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.