7.10b

Which ecosystem is least able to sustain its organisms during a period of environmental stress?

• Desert

• Grassland

• Rain Forest

• Arctic

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which indicator most likely limits the sustainability of organisms within an ecosystem?

• Amount of annual precipitation

• Lack of diversity of organisms within the ecosystem

• Ecosystem checks and balances

• Presence of decomposers

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which organisms help increase the biodiversity of an ecosystem and conserve and recycle resources?

• Producers

• Parasites

• Predators

• Decomposers

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-5

A predator of several organisms is introduced into an ecosystem. How might it affect the biodiversity of the environment?

• Biodiversity increases as the number of species decreases

• Biodiversity increases as the number of species increases

• Biodiversity remains constant as the number of species decreases

• Biodiversity decreases as the number of species increases

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which food web has the greater biodiversity?

• Food Web X

• Food Web Y

• They have equal biodiversity

• There is not enough information to determine biodiversity

Tags

NGSS.MS-LS2-5

Scientists observe two different habitats in North America. In the event of a natural disaster, which habitat most likely survives and has the ability to rebuild?

• Habitat 2 survives and rebuilds because there are less species that escape the natural disaster

• Habitat 1 survives and rebuilds because there is less biodiversity

• Habitat 1 survives and rebuilds because there is more biodiversity

• Habitat 2 survives and rebuilds because there is less biodiversity

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which increase is NOT important to the biodiversity in an ecosystem?

• Number of different species

• Number of animals in a single species

• Number of producer species

• Number of predator species

Tags

NGSS.MS-LS2-5

The impact of vanishing species will be highest if there is a significant loss of -

• manmade resources

• biodiversity

• ecological problems

• conservation

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Biodiversity results in a healthy ecosystem. How can humans make a positive impact on sustaining an ecosystem's biodiversity?

• Ensure appropriate conservation of natural resources

• Increase industrial fishing

• Exploit land and its resources

• Reserve more land for waste containment

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Scientists have concluded ecosystems with a high level of biodiversity are more stable than ecosystems with a low level of biodiversity. Why have scientists made this conclusion?

• A high level of biodiversity has many more animals, so there is a greater chance some survive environmental stressors

• A high level of biodiversity has a large variety of species, so the ecosystem can better survive environmental stressors

• A ecosystem with a high level of biodiversity only has the strongest organisms, so they will survive environmental stressors

• An ecosystem with a high level of biodiversity is in an area in which environmental stressors are rare.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5