Unit Exam 6A Photosynthesis, Food webs and chains, Energy Pyrami

__________ is the process that plants use to breathe and make food.

• Photographs

• Oxygen

• Hydrogen

• Photosynthesis

If plants breathe in carbon dioxide, what do they breathe out?

• Nitrogen

• Oxygen

• Carbon monoxide

• Helium

What is the compund that plants use to absorb the energy from sunlight?

• Carbon dioxide

• Chlorophyll

• Nitrogen

• H2O

What 3 things do plants need for the process of photosynthesis?

• Sunlight, oxygen and sugar.

• Water, soil and oxygen.

• Sunlight, carbon dioxide and water.

• Sunlight, soil and water.

Sunlight is the main source of energy that drives photosynthesis process.

• True

• False

What is the primary source of energy in a food chain?

• A producer
• The sun
• A decomposer
• A consumer

How does a producer obtain it's energy?

• By eating other organisms
• By eating plants
• By breaking down dead, decaying matter
• By absorbing sunlight, water, and CO2 (carbon dioxide)

Which of the following correctly depicts a food chain?

• sun, grass, rabbit, snake, hawk, decomposer
• sun, rabbit, grass, hawk, decomposer
• sun, snake, hawk, decomposer
• grass, rabbit, snake, hawk

TRUE  or FALSE: Food webs are several food chains that are linked together.

• TRUE
• FALSE

Which is an example of a primary consumer?

• A cow
• A wolf
• The sun
• A snake