Interactions Within Ecosystems

The air we breath is made mostly of _______

• carbon dioxide
• oxygen
• nitrogen
• hydrogen

_______ eat herbivores, omnivores and carnivores

• carnivores
• omnivores
• herbivores
• detritivores

____________ is the process of a producer making food from chemicals.

• photosynthesis
• farming
• chemosynthesis

Nitrogen gas can be used by plants and animals.

• true
• false

A population of animals is made up of all of the animals of the same species in an ecosystem.

• true
• false

Which is NOT one of the 5 Rs for helping the environment?

• Restore
• Rethink
• Repair
• Reuse

A butterfly pollinates a flower while getting food for itself.  What type of interaction is this?

• commensalism
• mutualism
• parasitism
• predation

Which of the following eats consumers?

• carnivore
• herbivore
• bacteria
• fungi

What can happen if there is overpopulation?

• not enough food for that species
• not enough food for other species
• some of the species will move away
• all of the above

What law states, "Matter cannot be created or destroyed, but it can change form."

• law of gravity
• law of inertia
• law of conservation of matter