USA 2 Alterations in Ecosystems Review

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

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

• primary succession
• secondary succession
• climax community
• limiting factors

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NGSS.MS-LS2-4

Starts with BARE ROCK followed by lichen

• primary succession 
• secondary succession
• both types of succession

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NGSS.MS-LS2-4

If there is 1000 Kcal available in the producers in trophic level 1, how much energy is available in the herbivores in trophic level 2?

• 10Kcal

• 1Kcal

• 100Kcal

• 1000Kcal

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NGSS.MS-LS2-3

What would happen to the bird if the green fish died out?

• The bird population would grow

• The smaller fish will die out

• The bird population will die out

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NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Biodiversity leads to

• Increased Stability

• Decreased Stability

• Increased Exctintions

• Increased Endangered Species

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NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?

• There would be a decrease in the small bird population.
• There would be a decrease in the grass/flowers population.
• There would be a decrease in the mice population.
• There would be an increase in the grass/flowers population.

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NGSS.MS-LS2-1

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What may happen if the snowshoe hare was removed from the food web pictured?

• The insects in the habitat would increase.
• The shrew population would decrease due to being only hawk food source.
• The willow tree population would decrease.
• Foxes would dies due to no food source. 

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NGSS.MS-LS2-1

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A pilot fish usually follows behind sharks to pick up food scraps that they leave behind. The fish gets food and the shark is unaffected. This is an example of:

• Mutualism

• Commensalism

• Parasitism

• Decomposition

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NGSS.MS-LS2-2

A clownfish uses a sea anenome as a safe place to live. While living there, the clownfish lures in food for the anenome. This is an example of what type of relationship?

• Predator-Prey
• Commensalism
• Mutualism
• Parasitism

Tags

NGSS.MS-LS2-2