SBM Review 3

Most producers make their own food. To do this, they need which of the following things?

• Oxygen from the air, sunlight, and water

• Carbon dioxide from the air, sunlight, and water

• Sunlight and water

• Carbon dioxide from the air, sunlight, water, and soil

Tags

NGSS.MS-LS1-6

Look at the partial food web. Which of the following should be placed where the X is on the food web?

• A producer

• A decomposer

• A consumer

• The sun

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NGSS.MS-LS2-3

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What is the role of decomposers in a food web? 

• 1. Decomposers absorb energy from the Sun and create their own food to transfer to other organisms in the food web.

• 1. Decomposers eat plants and transfer energy from plants to other animals. 

• 1. Decomposers eat animals and transfer the energy from those animals to the animals that eat the decomposers. 

• 1. Decomposers break down decaying plant and animal matter, returning nutrients to the soil that can be used by plants as they produce food. 

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NGSS.MS-LS2-3

NGSS.MS-LS2-2

Food webs are made of producers, consumers, and decomposers, which all have important roles to play in the cycling of energy and matter through an ecosystem. Four students have tried to explain why producers are labeled as such in a food web. Which of their explanations is the most accurate?  

• 1. Student 1: Plants are called producers because they produce the Sun’s energy to create food. 

• 1. Student 2: Plants are called producers because instead of consuming other organisms to gain energy, they produce their own food using the Sun’s energy. 

• 1. Student 3: Plants are called producers because they produce nutrients for decomposers as they decay. 

• 1. Student 4: Animals are called producers because they produce waste matter that provides nutrients to decomposers.  

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

6. A desert food web is shown. In this food web, which of the following only receives energy that is transferred directly from consumers? 

• 1. Snakes 

• 1. Small lizards 

• Insects

• Scorpions

• 1. Desert plants 

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NGSS.MS-LS2-3

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What is the main source of energy in a food web?

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

1. According to the information in the table, finding which fossil in a region would lead to the conclusion that the area was covered with many thick trees long ago?

• 1. Water strider 

• Beetle

• Snail shell

• Scorpion

At times, scientists have found fish fossils in dry areas. What does this tell the scientists about the dry area? 

• The area was once a tundra.

• The fish were moved into that area by someone.

• The area was once a desert.

• The area was once covered with water.

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NGSS.MS-LS4-1

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3. Based on the information in the boxes shown, which statement is true about the oldest layer? 

• The oldest layer was an ocean at one time and contained many fish.

• The oldest layer was a forest, and large bears lived there.

• Fern fossils were found in the oldest layer, and the area was a swamp.

• In the oldest layer, there were no fish fossils found—only clam fossils.

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NGSS.MS-LS4-1

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

6. Which statement best explains the environment in which the given fossils were most likely formed? 

• The fossils in layers 1, 2, and 3 formed in water.

• The fossils in layer 3 formed in the forest.

• The fossils in layers 1, 2, and 4 formed in water.

• The fossils in layers 3 and 4 formed in water.

• All the fossils formed on land.

Tags

NGSS.MS-LS4-1

NGSS.MS-ESS1-4