Ecosystem

Diagram 1 shows an ecosystem in tropical rainforest. What is the importance of green plants in the ecosystem?

• As a main source of energy

• Provides living organisms with all their daily needs

• Decomposes dead organisms into simpler subtances or nutrients

• Converts solar energy (sunlight) to chemical energy through photosynthesis process

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

Diagram above shows a food chain. Why is python classified as a tertiary consumer?

• It eats producer

• It is an omnivor animal

• It eats secondary consumer

• Its size is bigger as compared to other organisms in the food chain

Tags

NGSS.MS-LS2-3

Diagram shows a pyramid of numbers of organisms. Which of the following statements is true about the pyramid of numbers?

• The number of organisms increases from the base to the top of the pyramid of numbers

• The size of the organisms decrease from the base to the top of the pyramid of numbers

• The number of the organisms decrease from the base to the top of the pyramid of numbers

• When one population in a food web decreases in number, the food web still in balanced

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following human activities will interfere the nutrient cycle?

• Replanting

• Enforcement of law

• Use the precipitator at the factory's chimney

• Unrestricted logging

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NGSS.MS-LS2-1

NGSS.MS-ESS3-4

An organism that produce food through photosynthesis.

• Primary consumer

• Producer

• Secondary consumer

• Tertiary consumer

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

The main source of energy for producer.

• The Sun

• Glucose

• Water

• Carbon dioxide

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NGSS.MS-LS1-6

A consumer that eats only plant.

• Producer

• Omnivore

• Herbivore

• Carnivore

An arrangement of interrelated food chains illustrating the flow of energy between interdependent organisms.

• Preydator

• Ecosystem

• Food web

• Food chain

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NGSS.MS-LS2-3

NGSS.MS-LS2-2

What are the primary consumer in the food web?

• Mussel and crab

• Shrimp and star fish

• Mussel and shrimp

• Seaweed and sea anemone

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NGSS.MS-LS2-3

NGSS.MS-LS2-2

Name the process that uses carbon dioxide and release oxygen to the atmosphere.

• Respiration

• Photosynthesis

• Decomposition

• Burning of fossil fuels

Tags

NGSS.MS-LS1-6