Ecosystems

The place where an organism lives is its __________.

• habitat
• ecosystem
• organism
• population

All of the living AND non-living things in an area that interact with each other are called a/an __________.

• community
• habitat
• population
• ecosystem

ALL energy flow for an ecosystem begins with ...

• plants
• the moon
• the sun
• algae

Organisms that hunt other organisms for food are called __________.

• predators
• prey
• producers
• heterotrophs

A bird in a tree watched as a lion stalked, attacked, and then ate a zebra. Which of these animals was the prey?

• bird
• lion
• zebra
• all of the above

To avoid being eaten, a rabbit will run away from

• carnivores.

• scavengers.

• herbivores.

• producers.

The job or role of a plant or an animal in the ecosystem.

• carnivore

• niche

• consumer

• habitat

An animal that eats only meat.

• herbivore

• omnivore

• carnivore

• scavenger

Any relationship in which two different species use each other to live is called _________________.

• Predation

• Symbiosis

• Competition

• Harmony

Humans need this gas

• CO (carbon monoxide)
• CO₂ (carbon dioxide)
• O₂ (oxygen)
• O₃ (ozone)