Changes Affect Organisms

What is an invasive species?

• An organism that is new to an environment that has positive effects on the environment.

• An organism that is native to an environment that has negative effects on the environment.

• An organism that is new to an environment that has negative effects on the environment.

• An organism that is native to an environment that has positive effects on the environment.

Invasive species can have a major impact on the ecosystem.

• TRUE

• FALSE

Invasive species don't harm native species that are beneficial to the environment.

• TRUE

• FALSE

Invasive species alter the ecosystem by ______ in number quickly. This leads to ______ food for the native species.

• increasing, less

• increasing, more

• decreasing, less

• decreasing, more

TRUE or FALSE? Invasive species can be introduced to an ecosystem accidentally/

• True

• False

Invasive plants compete with native plants for --- [choose 3]

• sunlight

• water

• oxygen

• space

What is an invasive species?

• A native (naturally found) species which are added to an area

• An organism that is new to an environment and has a negative effect on that environment.

• A keystone species in an environment

• none of the above

A species that is NOT native to a particular region is called

• natural
• invasive
• endemic
• extraordinary

A species that is NOT native to a particular region is called

• natural
• invasive
• endemic
• extraordinary

Living things always help the environment.

• True

• False