Unit 6 Energy and Ecosystems

In a diagram of a food chain, where does a producer, such as a tree, get the energy it needs to survive?

• from the air

• from the remains of organisms

• from the organisms it eats

• from the sun

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Jose observed a puddle in a schoolyard. He gathered a sample of the water in the puddle and used a microscope to study the organisms that live in this micro-habitat. The table shows his results. What is true of the organisms in this puddle?

• They are all the same shape.

• They are all mammals.

• They are all the same color

• They are all small.

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NGSS.MS-LS1-1

A student is studying interactions between organisms in a food web. She wonders what could happen in a prairie ecosystem if foxes suddenly disappeared. Which of the following is the best answer to her question?

• If foxes disappear, all other populations will grow.

• If foxes disappear, the population of an organism on which foxes fed will likely grow.

• If foxes disappear, the population of an organism that feeds on foxes will likely grow.

• If foxes disappear, all other populations will shrink.

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Below is a diagram of the carbon cycle. Which number corresponds to combustion and the release of CO2, and water and the loss of energy as heat into the environment?

• 4

• 2

• 3

• 1

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NGSS.MS-ESS3-4

Bees have a society in which different members have different responsibilities. The interaction among bees is an example of what type of behavior?

• commensalism

• consumerism

• competition

• cooperation

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The following diagram shows a common cell organelle. What process takes place in the organelle shown?

• packaging of proteins

• cellular respiration

• protein synthesis

• photosynthesis

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You observe a garden in a schoolyard. Corn, tomatoes, pumpkins, and other crops thrive in the garden. What is most likely true of the soil in this microhabitat?

• it is thin, acidic and nutrient poor

• it is deep, dark, and nutrient rich

• it is rocky, sandy, and dry

• it is dry and frozen

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The diagram below shows interactions between different animals in an ecosystem. What type of ecosystem might be represented by the above diagram?

• arctic tundra

• wetland

• desert

• ocean

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What is one way that cooperation helps lions to survive?

• They live in prides of five to ten adult females and their young, and one or two adult males.

• They hunt on their own and then share the food after

• They all have a tan color that helps them blend into their environment.

• They hunt in a group to increase their likelihood of catching prey.

What form of energy is stored in food?

• mechanical energy

• chemical energy

• kinetic energy

• light energy

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NGSS.MS-LS1-7