BOOTCAMP SC.8.L.18.3A EQUIVALENT EXPERIENCE

What is the primary role of producers in a food chain?

• To store nutrients in the soil

• To convert sunlight into chemical energy

Answer explanation

Producers, such as plants, play a crucial role in a food chain by converting sunlight into chemical energy through photosynthesis. This process forms the base of the food chain, supporting all other organisms.

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NGSS.MS-LS1-6

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How does matter primarily enter a food chain?

• Through producers absorbing nutrients and carbon dioxide

• Through the atmosphere directly

Answer explanation

Matter primarily enters a food chain through producers, which absorb nutrients and carbon dioxide to create energy via photosynthesis. This process forms the base of the food chain, supporting all other organisms.

Tags

NGSS.MS-LS1-6

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When a rabbit eats a carrot, what is happening in terms of matter movement?

• Matter is being transferred from a producer to a consumer

• Matter is being lost from the ecosystem

Answer explanation

When a rabbit eats a carrot, it consumes matter (the carrot) produced by plants (producers). This illustrates the transfer of matter from producers to consumers in the ecosystem.

Tags

NGSS.MS-LS2-3

What role do decomposers play in the ecosystem?

• They break down dead organisms, returning matter to the environment

• They produce energy from sunlight

Answer explanation

Decomposers play a crucial role in ecosystems by breaking down dead organisms. This process returns essential nutrients and matter to the environment, supporting new plant growth and maintaining ecological balance.

Tags

NGSS.MS-LS2-3

Which of the following best describes the movement of carbon through a food chain?

• Carbon moves from producers to consumers and is released as carbon dioxide

• Carbon is only found in decomposers

Answer explanation

Carbon moves through the food chain as it is taken up by producers (plants) during photosynthesis, then transferred to consumers (animals) when they eat the plants, and is released back into the atmosphere as carbon dioxide during respiration.

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NGSS.MS-LS1-6

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What happens to matter when a hawk eats a snake?

• Matter is transferred from one consumer to another

• Matter is converted into energy

Answer explanation

When a hawk eats a snake, matter is transferred from the snake (the prey) to the hawk (the consumer), illustrating the flow of energy and nutrients in the food chain.

Tags

NGSS.MS-LS2-3

Why is the movement of matter in food chains important for ecosystems?

• It ensures the recycling of nutrients and supports life

• It reduces the number of consumers

Answer explanation

The movement of matter in food chains is crucial as it ensures the recycling of nutrients, which supports life in ecosystems. This process maintains balance and allows various organisms to thrive.

Tags

NGSS.MS-LS1-6

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How do plants contribute to the carbon cycle in food chains?

• By consuming other plants

• By absorbing carbon dioxide and converting it into food

Answer explanation

Plants contribute to the carbon cycle by absorbing carbon dioxide from the atmosphere during photosynthesis and converting it into food, which is essential for the growth of the plant and supports the food chain.

Tags

NGSS.MS-LS1-6

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What happens to matter when organisms die in an ecosystem?

• It is recycled by decomposers

• It becomes energy

Answer explanation

When organisms die, their matter is not lost; instead, it is recycled by decomposers. These organisms break down dead material, returning nutrients to the ecosystem, which supports new life.

Tags

NGSS.MS-LS2-3

In a food chain, what is the relationship between soil and producers?

• Producers decompose soil

• Soil provides nutrients that producers use to grow

Answer explanation

Soil provides essential nutrients that producers, such as plants, use to grow. This relationship is vital for the health of ecosystems, as producers rely on soil for their development and energy production.

Tags

NGSS.MS-LS2-1

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