NY Regents Change and Response

Ecosystems tend to go through ​ (a)   with time until a stable system (​ (b)   ) is attained.

The type of ecosystem that is formed depends on the ​ (c)   of a particular geographical area.

• dynamic change
• climax community
• climatic limitations

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NGSS.MS-LS2-4

As a result of ​ (a)   , there is diversity of organisms and roles in ecosystems.

The diversity of species ​ (b)   the chance that at least some will ​ (c)   in the face of large​ (d)   changes.

• evolutionary process
• increases
• survive
• environmental

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

Which term means that the climax community is balanced?

• equillibrium

• metabolism

• variety

Tags

NGSS.MS-LS2-4

What does Bio-diversity represent

• Bio=nonliving

  Diversity=all the same

• Bio=Living

  Diversity= variety

• Bio=non living

  Diversity= all the same

Tags

NGSS.MS-LS2-5

NGSS.MS-LS4-4

​ (a)   increases the stability of the ecosystem. It also ensures the availability of a​ rich variety of ​ (b)   that may lead to future ​ (c)   or medical discoveries with significant value to humankind.

As diversity is lost, potential sources of these materials may be​ (d)   .

• Biodiversity
• genetic material
• agricultural
• lost with it

Tags

NGSS.MS-LS2-5

Reorder the following

• availability of future agricultural and medical discoveries

• Stability of the ecosystem

• Diversity is lost so are the agricultural and medical discoveries lost

• Biodiversity

Tags

NGSS.MS-LS2-5

The replacement of one community by another until a stable stage ​ (a)   ) is reached is called ​ (b)   .

Succession may be said to begin with ​ (c)   , since these are the ​ (d)   to populate a given location.

• (climax community
• ecological succession
• pioneer organisms
• first living things

Lichens ( a symbiotic association between a ​ (a)   ) are ​ (b)   on bare rock. Pioneer organisms ​ (c)   their environment.

Seasonal ​ (d)   , for example, would create pockets of "​ (e)   " in the crevices of bare rock.

• fungus-alga
• pioneer organisms
• modify
• die-back and erosion
• soil

Tags

NGSS.MS-LS2-4

As lichens ​ (a)   , they add ​ (b)   matter and moisture to their ​ (c)   (surface which organism attaches to) . After a period of time, ​ (d)   is made and is ​ (e)   for the lichen to survive.

• grow and reproduce
• organic
• substratum
• humus
• too rich and moist

Tags

NGSS.MS-LS2-3

Lichens die but produce a ​ (a)   substratum (what organisms attach to) that will support ​ (b)   for the development of ​ (c)   , the next stage of s​ (d)   .

• richer
• seeds
• grasses and shrubs
• uccession

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4