Unit 2: Biodiversity Review

What type of organism helps define an entire ecosystem? Without this organism, the ecosystem would be forced to radically change.

• endemic species

• invasive species

• keystone species

• native species

Tags

NGSS.MS-LS2-4

Which level of biodiversity explains the range of different inherited traits within a species?

• ecosystem biodiversity

• genetic biodiversity

• species biodiversity

• animal biodiversity

Tags

NGSS.MS-LS3-2

NGSS.MS-LS4-4

Which of the following defines an indicator species?

• A species that is at a high risk for extinction

• A species whose presence, absence, or abundance reflects a specfic environmental condition

• A species not native to a specific area that can harm the ecosystem

• A species that is vital to the ecosystem and without this organism, the ecosystem would drastically change.

What term describes the sum total of MASS of LIVING organisms?

• automatic diversity

• displacement

• pioneering stage

• biomass

A healthy, stable ecosystem will have a high level of biodiversity. Why is this?

• Each species inhabits different environments.

• Each species is part of a different community.

• Each species lives in a different biosphere.

• Each species occupies a different niche.

Tags

NGSS.MS-LS2-5

species that are native to and found only within a limited area

• endemic

• exotic

• endangered

• extinct

the variety of life in the world or in a particular habitat or ecosystem

• biodiversity

• demography

• carrying capacity

• poaching

Tags

NGSS.MS-LS2-5

Why is it important to conserve the biodiversity of Earth?

• to decrease the amount of global predator populations

• to decrease the stability of major global ocean currents

• to increase the stability of ecosystems during environmental changes

• to increase the amount of nonrenewable resources located in the lithosphere

Tags

NGSS.MS-LS2-5

True or false: An ecosystem with high genetic diversity is healthier than an ecosystem with low genetic diversity.

• True

• False

Tags

NGSS.MS-LS2-5

NGSS.MS-LS4-4

Image "B" shows more biodiversity than image "A". Why?

• Because "B" shows more different species than image "A"

• Because image "B" has less different species than "A"

• "A" has a greater number of same species plants so this statement is wrong.

• Both images show the same biodiversity

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-5