STAAR Review Life Science (part 4)

When there is higher biodiversity

• more organisms are likely to die because they can't adapt to environmental changes.

• there is less diversity.

• there is more diversity and higher sustainability of life.

• there is more diversity and lower sustainability of life

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NGSS.MS-LS2-5

A small marine area has phytoplankton as its only producer. Should the marine biologist be concerned about this ecosystem?

• No the fish do not need the phytoplanton. Since there are so many fish, there is high biodiversity.

• Yes, this ecosystem has low biodiversity. Without a producer the herbivores will die out leaving no food.

• Yes, this system has high biodiversity; however the fish can adapt and get food from another source.

• Yes, the fish will overate to get all of the phytoplankton that is left, then they will die.

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NGSS.MS-LS2-3

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How do biodiversity and sustainability work together?

• The lower the biodiversity the greater the sustainability.

• The higher the biodiversity, the less sustainable the ecosystem

• The higher the biodiversity, the greater the sustainability.

• Biodiversity has nothing to do with sustainability.

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High biodiversity is

• having a lot of the same organism.

• having a few of the same organism.

• having a lot of variety of different organisms.

• only having one of each organism.

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NGSS.MS-LS2-5

How do lichens contribute to primary succession?

• Lichens decompose organic matter from animals and plants

• Lichens begin to break down rock to form soil

• Lichens are nitrogen fixing bacteria

• Lichens convert carbohydrates into fossil fuels.

What is formed during primary succession that doesn't need to be formed during secondary succession?

• pioneer species

• soil

• climax community

• lichens

What type of succession is shown going from figure A to figure B?

• primary succession

• eutrophication

• secondary succession

• intermediate

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NGSS.MS-LS2-3

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After a forest fire, an ecosystem would start regrowth through -

• primary succession

• secondary succession

• climax community

• limiting factors

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starts with bare rock followed by lichen

• primary succession

• secondary succession

• both types of succession

Tool used by a taxonomist to identify an unknown organism is a:

• dichotomous key

• binomial nomenclature

• scientific name

• binomial key