Invasive species

Which of the following sentences BEST shows the high reproduction rates of lionfish?

• The fish mature in a year and females can spawn every four days, pumping out 2 million eggs a year.

• The lionfish population exploded in the Florida Keys and the Bahamas between 2004 and 2010.

• "They're moving into new areas and, when they get settled, the population increases pretty quickly."

• Lionfish now are more common in the Bahamas than their home waters.

Tags

NGSS.MS-LS2-4

Eradication of non-native species is a difficult task. Prevention is easier. Why?

• There are no natural diseases or predators for invaders so they grow exponentially.
• The species have a higher reproductive rate than native species.
• The species can successfully out-compete native species.

Tags

NGSS.MS-LS2-4

The electric fence is "keeping" the Asian Carp out of the Great Lakes so far according the the Army Corp or Engineers. What potential problems will the fish pose if they get in.

• A physical danger to boaters
• They may eat too much of the base of the food chain.
• They may be a new source of food.
• A and B only

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Most invasive species get from their native ecosystem by:

• the exotic pet trade
• transported by human
• planted in landscapes
• all of the answers

Which choice accurately describes an invasive species?

• A native species in that area
• An organism that has many natural predators
• A non-native species in that area
• A species organism whose population is well undercontrol

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Why do populations of invasive species grow so quickly?

• Invasive species have many different natural predators
• Invasive species have no natural predators
• Invasive species are harmful to the ecosystem
• Invasive species populations don't grow quickly

Tags

NGSS.MS-LS2-4

A ____________ plant species is one that came from one area to another area due to human action.

• Weed
• Native
• Invasive
• None of the above

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

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Biodiversity refers to

• extinct species
• the variety of species on Earth
• nonrenewable resources
• the rate of species decline

Tags

NGSS.MS-LS2-5

The lack of natural predators makes populations of invasive species unmanageable?

• True
• False

Tags

NGSS.MS-LS2-4