Env. Sci. Review #3

What is an invasive species?

• A native (naturally found) species which are added to an area. 
• A non-native (not naturally found) species added to an area. 
• A keystone species in an environment
• none of the above

Invasive species alter the ecosystem by __________in number quickly,this leads to _____ food for the native species.

• increasing, less

• declining,more

Invasive species grow quickly due to the lack of predators, this leads to a decline or extinction of the native population. True or false? 

• false
• true

1. What makes a species invasive?

• Moving to a new ecosystem and taking resources from natives 
• Not having papers
• Species that can't adapt
• Plants that take up too much space

Invasive species have a negative impact on...

• the ecosystem

• the economy (money)

• Both the ecosystem and the economy

• None of these

What does the work Invade mean?

• To walk into a room and ask directions
• To move into and sit down quietly
• To move into and harm
• To stay put

Invasive species cause harm to what?

Choose all that apply

• economy (money)

• atmosphere only

• environment

• health of organisms

• water only

How do the invasive nutria harm the ecosystem?

• they eat the vegetation in wetlands

• they eat the native birds' eggs

• they take over nests of native birds

• they go into people's houses

How do invasive species travel?

• They are pets released by people.

• They travel via boat, latching themselves onto the hull and traveling for thousands of miles

• They are brought in by people traveling or importing goods.

• All of the above

How can we try to help fix the invasive species problem?

• Make sure you’re not taking any native plant, animal, or bug with you when you travel

• Do not transport plants from other places, even as decoration.

• Do not release pet animals into the wild.

• All of the above.