Ecosystems, Food chain and Food web

What is an ecosystem?

• A series of living beings that coexist

• A set of abiotic factors

• A place with many animals

• A community of living beings along with their environment

What is energy?

• It is the capacity to do work.

• A nutritious chocolate bar.

• It is the result of using electricity.

• The combined uses of nuclear, chemical, and electrical forces.

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What is a producer?

• An organism that decomposes animals or dead things.

• An organism that makes its own food.

• An organism that eats other living beings.

• An organism that eats plants.

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All members of the same species that inhabit an ecosystem form:

• A community

• An ecosystem

• A population

• A species

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What is a consumer?

• An organism that makes its own food.

• An animal that eats other organisms to obtain energy.

• A microscopic organism.

• An organism that does not need food.

We call a community:

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Which of these organisms is a decomposer?

• A cricket

• An insect

• A vulture

• A fungus

The relationships of feeding in ecosystems are represented by:

• Food pyramids.

• The food wheel.

• Food chains.

• Types of food.

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Components such as water, temperature, sunlight, rocks, soil, and oxygen are known as:

• Abiotic factors

• Biomass

• Biotic factors

• Ecosystem

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Where do plants obtain most of their food?

• From the sun.

• From the sun, water, and carbon dioxide from the atmosphere.

• From the soil.

• From the different nutrients in the soil and water.

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