Keystone species

A species that plays a critical role in the health, maintenance, growth, or definition of an ecosystem.

• keystone

• invasive

• engineer

• predator

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

A species that does not belong in a balanced ecosystem, comes in, and changes it (usually for the worse).

• flagnship

• umbrella

• invasive

• predator

Tags

NGSS.MS-LS2-4

The number and variety of different species in an area

• Biodiversity

• Keystone species

• Extinction

• Invasive species

Tags

NGSS.MS-LS2-5

The disappearance of all members of a species from Earth

• Biodiversity

• Keystone species

• Extinction

• Invasive species

Tags

NGSS.MS-LS4-1

An organism whose presence, absence or abundance reflects a specific environmental condition:

• keystone species

• exotic species

• indicator species

• native species

• endangered species

A species indigenous to a certain region or ecosystem naturally is a ---

• Native Species.

• Accidental Species.

• Introduced Species.

• Invasive Species.

Sea lampreys (parasitic fish) enter this ecosystem. They prey on larger fish like bass. Where could they be placed on this food web?

• A

• B

• C

• D

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-2

NGSS.MS-LS2-1

Barnacles create home sites by attaching themselves to whales. This relationship neither harms nor benefits the whales. 

• parasitism
• commensalism
• mutualism

A series of progressive changes in the composition of an ecological community over time

• Climax Community

• Primary Succession

• Ecological Succession

• Species Richness

Which of the following leads to a decrease in biodiversity?

• introduction of invasive species

• prevention of erosion

• ecological land use planning

• pollution control

Tags

NGSS.MS-LS2-4

NGSS.MS-ESS3-4