Identifying Organisms Flashcard

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What is Secondary Succession?

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Secondary succession is the process of ecological recovery that occurs in an area where soil and some organisms still exist after a disturbance, such as a fire or flood.

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What is Primary Succession?

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Primary succession is the process of ecological recovery that occurs in an area where no soil exists, such as after a volcanic eruption or glacier retreat.

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What is Nitrogen Fixation?

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Nitrogen fixation is the process by which certain organisms, primarily bacteria, convert nitrogen gas from the atmosphere into a usable form for plants.

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What are Autotrophs?

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Autotrophs are organisms that produce their own food using sunlight or chemical energy, such as plants and some bacteria.

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What are Heterotrophs?

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Heterotrophs are organisms that cannot produce their own food and must consume other organisms for energy, such as animals and fungi.

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What is Biomagnification?

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Biomagnification is the process by which the concentration of toxins increases in organisms as you move up the food chain.

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What is an Herbivore?

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An herbivore is an organism that primarily consumes plants for energy, such as a rabbit or a deer.

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What is a Carnivore?

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A carnivore is an organism that primarily consumes other animals for energy, such as a lion or a hawk.

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What is an Omnivore?

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An omnivore is an organism that consumes both plants and animals for energy, such as humans and bears.

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What role do bacteria play in the nitrogen cycle?

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Bacteria play a crucial role in the nitrogen cycle by fixing nitrogen gas into a usable form for plants and decomposing organic matter.