5.9B Flow of Energy in a Food Web

What are algae?

• Animals that live in water and rely on other organisms for food

• Tiny plants that live in water and use sunlight to make their own food through photosynthesis

• Bacteria that live in water and produce oxygen

• Fungi that live on land and absorb nutrients from organic matter

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What are the characteristics of cacti?

• Plants with thin, watery stems and large leaves

• Plants with thick, fleshy stems and spines instead of leaves, well-adapted to arid environments

• Aquatic plants that float on water surfaces

• Trees with deep roots and broad leaves for maximum sunlight absorption

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What is a food web?

• A single chain of organisms each dependent on the next as a source of food

• A group of herbivores sharing the same food source

• Interconnected food chains within an ecosystem

• A system where only one type of organism is the food source for all others

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What is the role of plants and animals in a food web?

• They have no specific role and exist independently of each other

• Each plant and animal has a role to play, like being a producer, consumer, or decomposer

• Plants and animals compete for the same role as primary consumers

• Animals are producers and plants are decomposers

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What is the primary source of energy for plants to grow through sunlight?

• Moon

• Sun

• Soil

• Water

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What is a producer in an ecosystem?

• An organism that eats other organisms

• An organism that breaks down dead plants and animals

• An organism that makes its own food through photosynthesis using sunlight

• An organism that hunts other animals

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What is a consumer in an ecosystem?

• An organism that produces its own food

• An organism that eats other organisms

• An organism that decomposes dead matter

• An organism that relies solely on water

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What role does a decomposer play in an ecosystem?

• It helps in pollination of plants

• It captures sunlight for photosynthesis

• It breaks down dead plants and animals to return nutrients to the soil

• It consumes other organisms for energy

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What does the term "niche" refer to in an ecosystem?

• Animals that eat other animals

• Animals that eat both animals and plants

• The role and position that an organism occupies within its ecosystem, including its interactions with other organisms and its environment

• Animals that eat grass

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What are herbivores?

• Animals that eat other animals

• Animals that eat both animals and plants

• The role and position that an organism occupies within its ecosystem

• Animals that eat grass