Ecosystems quiz

Both plants and animals depend on the environment to obtain energy, but they meet their needs differently. Which statement below best describes how each group meets their needs?

• Plants get their food from other plants, while animals depend on plants and other animals for food.

• Plants receive their food from sunlight while animals receive all their food from plants.

• Plants make their own food using sunlight while animals depend on other animals for food.

• Plants make their own food using sunlight while animals depend on plants and other animals for food.

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In the diagram to the right, the label Z represents—

• Sugar

• Carbon dioxide

• Nitrogen

• Water vapor

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Which of the organisms pictured above can make its own food?

• Rabbit

• Daisy

• Beetle

• Earthworm

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Producers make their own food through a process called photosynthesis. What are the three main ingredients for this process?

• Water, sunlight, and oxygen

• Sunlight, oxygen, and carbon dioxide

• Water, oxygen, and carbon dioxide

• Sunlight, water, and carbon dioxide

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Energy that moves through a food web originally comes from—

• The water cycle

• The plants as producers

• The animals as consumers

• The sun

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Which statement best describes the relationship between a bird and a worm?

• The worm is the producer and the bird is the consumer.

• The worm is the prey and the bird is the predator.

• The bird is the producer and the worm is the consumer.

• The bird is the prey and the worm is the predator.

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There was a small pond in a forest near a farm. It remained unchanged for many years. A farmer decided to release several fish into the pond. The fish he put in the pond did not normally live in that ecosystem. These fish ate all the other fish in the pond. As a result, many other animals left the ecosystem. Which statement is a valid conclusion based on the given information?

• The ecosystem did not change.

• The fish released by the farmer harmed the ecosystem.

• The fish released by the farmer improved the lives of the other fish in the pond.

• The ecosystem was permanently destroyed.

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Which of the following best describes the flow of energy in a food web that begins with the sun and includes producers, herbivores, and predators?

• Energy flows from the sun to producers, then to herbivores, and finally to predators.

• Energy flows from predators to herbivores, then to producers, and finally to the sun.

• Energy flows from herbivores to producers, then to predators, and finally to the sun.

• Energy flows from the sun directly to predators, then to herbivores, and finally to producers.

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Which of the following go through the process of photosynthesis?

• bees
• algae
• humans
• mushrooms

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Choose the statement that is correct:

• Producers and consumers are both dependent on other organisms for food.

• Producers can produce their own food but consumers are dependent on other organisms for food.

• Producers are dependent on other organisms for food but consumers can make their own food.

• Both producers and consumers can produce their own food.

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