IQWST Unit 3

An invading fungus develops in the forest and kills many of the green plants.  Which of the following populations will be directly or indirectly affected by the invader?

• owl population

• beetle, grasshopper, and snail populations

• shrew, spider, and wood mouse populations

• all of the above

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NGSS.MS-LS2-1

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Which of the following statements is true about the food web? Select all that apply.

• Beetles eat shrews.

• Beetles eat grasshoppers.

• Shrews eat beetles.

• Wood mice eat spiders.

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NGSS.MS-LS2-1

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What is the main focus of Unit 3 in IQWST for grade 6?

• Astronomy and space exploration

• The history of ancient civilizations

• Chemical reactions and properties of matter

• Ecosystems and interactions between living organisms and their environment

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NGSS.MS-ESS1-1

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What is a calorie?

• How we measure the energy in a food

• Unhealthy Food

• How much water we drink

• A sport

The source of all energy in an ecosystem comes originally from the _________.

• consumers

• producers

• sun

• organisms

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How do producers obtain energy in an ecosystem?

• Photosynthesis

• Chemosynthesis

• Respiration

• Decomposition

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What are some examples of consumers in an ecosystem?

• Primary consumers, secondary consumers, tertiary consumers

• Herbivores, carnivores, omnivores, decomposers

• Producers, autotrophs, heterotrophs

• Photosynthesis, respiration, fermentation

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NGSS.MS-LS2-3

How do changes in one part of an ecosystem affect other parts?

• Changes in one part of an ecosystem always result in positive outcomes for other parts

• Changes in one part of an ecosystem only affect nearby areas

• Changes in one part of an ecosystem can lead to cascading effects on other parts of the ecosystem.

• Changes in one part of an ecosystem have no impact on other parts

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A very hot summer in the forest caused the spider population to decrease greatly.  What is likely to happen to the population of grasshoppers?

• The grasshopper population will decrease.

• The grasshopper population will increase.

• The grasshopper population will stay the same.

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NGSS.MS-LS2-1

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Why are producers typically found at the beginning of a food chain?

• Producers do not rely on other organisms for food.

• There are always more consumers than producers in food chains.

• Consumers are always more complex organisms than producers.

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NGSS.MS-LS1-6

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