7.4 - 2 Flow of Energy in Ecosystems

Transfer of energy from the Sun through the different trophic levels of the biosphere

• Terrestrial

• Producers

• Energy transfer

• Consumers

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Consumers

• An organism that must consume other organisms for nutrients

• The continuous movement of different types of matter, such as water, phosphorous, nitrogen, and carbon, through different parts of the hydrosphere, lithosphere, atmosphere, and biosphere

• Something on or of Earth

• Overlapping food chains with different pathways for the flow of food energy in an ecosystem

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Overlapping food chains with different pathways for the flow of food energy in an ecosystem

• Food webs

• Consumers

• Cycle of matter

• Aquatic

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How does the eagle directly obtain its energy?

• From the snake or butterfly

• From the snake or frog

• From the raccoon

• From producers

Nutrients

• A substance that provides materials necessary for growth and the maintenance of life

• An organism that must consume other organisms for nutrients

• Overlapping food chains with different pathways for the flow of food energy in an ecosystem

• The continuous movement of different types of matter, such as water, phosphorous, nitrogen, and carbon, through different parts of the hydrosphere, lithosphere, atmosphere, and biosphere

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What does the image show?

• Food web

• Life cycle

• Food pyramid

• Food chain

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Aquatic

• Relating to the water; living in or near water or taking place in water

• Organisms such as bacteria and fungi that break down the remains of dead plants and animals without the need for internal digestion

• The continuous movement of different types of matter, such as water, phosphorous, nitrogen, and carbon, through different parts of the hydrosphere, lithosphere, atmosphere, and biosphere

• An organism that must consume other organisms for nutrients

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Something on or of Earth

• Food webs

• Aquatic

• Terrestrial

• Nutrients

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The movement and exchange of living and nonliving matter back into the production of living matter

• Food webs

• Ecological recycling

• Consumers

• Nutrients

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What happens to energy as it moves from a producer to the top consumer?

• More energy is gained with each organism that is eaten.

• The energy remains constant.

• It depends on which producers and consumers are involved that determines whether energy is gained or lost.

• Most of the energy is lost.

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