food chain - A series of steps in which organisms transfer energy by eating and being eaten, food web - A series of linked food chains., energy pyramid - Shows the amount of energy that moves from one feeding level to another in a food web., trophic level - Each step in a food chain, food web, or energy pyramid., heterotroph - An organisms that gets its energy from other organisms by eating or absorbing nutrients., autotroph - Organisms that make their own food from light or chemical energy without eating. Also known as producers., photosynthesis - A process by which certain organisms (plants, algae) use sunlight, water, and carbon dioxide to make food., carnivore - Heterotroph. Eats only other consumers. "Meat-eater". Examples: lion, bobcat, eagle., decomposer - Heterotroph: Organisms that feed on dead and decaying organic matter and breaks it down into simple chemicals. Examples include mushrooms and bacteria., herbivore - Heterotroph. Organisms that consume ONLY producers. Examples: cows, deer, rabbits., omnivore - Heterotroph. Eats both plants and animals. Examples: humans, dogs, chickens., producer - Autotroph. Gets energy from the sun or hot sea vents. Examples: phytoplankton, plants, algae., primary consumer - Herbivores: The first consumer in a food chain. Eats the producers., secondary consumer - An organism that eats primary consumers; second level of the energy pyramid., tertiary consumer - An organism that eats secondary consumers;, quaternary consumer - An organism that eats tertiary consumers; the fifth trophic level or 4th consumer level. Typically a carnivore., vore - A suffix meaning "one that eats"., phytoplankton - Autotroph: Microscopic, free-floating, autotrophic organisms that function as producers in aquatic ecosystems. Examples include: types of algae, diatoms, dinoflagellates., zooplankton - Heterotroph: Tiny floating organisms that are either small animals or protozoa (animal-like protists). Examples include: amoeba, flagellates, krill, and even jelly-fish.,

Ecosystem Energy Flow

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