How Ecosystems Work

This is the process where plants algae, and some bacteria use sunlight, CO₂ and Water to make food (Carbohydrates)

• Photosynthesis
• Cellular Respiration
• Burning
• Food Chains

This is the process by which cells use carbohydrates to make energy.

• Decomposition
• Photosynthesis
• Cellular Respiration
• Evaporation

This type of organism can make organic molecules for the sun or chemicals in the environment

• Consumer
• Producer
• Decomposer
• Parasite

This is another name for an organism who makes their food from nonliving parts of the environment:

• heterotroph
• consumer
• herbivore
• autotroph

This type of organism gets its nutrients from eating other animals or plants.

• Autotroph
• Heterotroph
• Herbivore
• Producer

This diagram shows the feeding relationships in an ecosystem.

• Food Chain
• Food Web
• Consumer
• Producer

This diagram shows the sequence in which energy is transferred from one organism to the next.

• Carbon Cycle
• Food Web
• Food Chain
• Nitrogen Cycle

In a food web, the 'thing' that eats the plants is known as the :

• Secondary consumer
• Primary Producer
• primary consumer
• Tertiary Consumer

Each time energy is transferred in a food chain only ________ % makes it to the next trophic level.

• 10
• 20
• 50
• 80

This intake of CO₂ by plants is a step in  which of the following cycles?

• Nitrogen
• Phosphorus
• Carbon
• Aluminum