Ecosystems and Biomes

A single organism in an environment is called 

• ecosystem
• individual
• habitat
• animal

Individuals of the same kind living in the same environment are called

• population
• ecosystem
• habitat
• fish

All the populations of organisms living together in an environment make up a

• individual
• environment
• community
• group

Together, a community and it's physical environment make up an

• ecosystem
• school of fish
• group
• individual

Every population has a place where it lives in an ecosystem and is called it's

• population
• group
• individual
• habitat

Each population has a role or

• niche
• group
• habitat
• ecosystem

In a healthy ecosystem, populations are interdependent. What does interdependent mean?

• They are separate and not related 
• They are friends
• They depend on one another
• They compete for things

Which of the following is NOT a limiting factor for plants to grow?

• rainfall
• humans
• soil
• temperature

What is NOT a limiting factor for animals in a particular ecosystem?

• Kinds of plants and animals
• Amount of plants and animals
• Human population

What is population density?

• The amount of plants in an area
• The number of people in a city
• The number of individuals living in a certain area
• The amount of animals in the zoo