Ecosystem Review

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What is Commensalism?

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A type of symbiotic relationship where one organism benefits while the other is neither helped nor harmed. Example: A stork using its bill to cut up dead animals, allowing bees to access the carcass.

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What is an Abiotic Factor?

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Non-living chemical and physical parts of the environment that affect living organisms. Example: Sunlight, water, temperature, and tornadoes.

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NGSS.MS-LS2-3

NGSS.MS-LS2-4

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What is the role of the Sun in an ecosystem?

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The Sun is the primary source of energy for ecosystems, enabling plants to perform photosynthesis.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

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What is Carrying Capacity?

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The maximum population size of a species that an environment can sustain indefinitely without being degraded.

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What is Competition in an ecosystem?

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A relationship between organisms where they vie for the same resources, such as food, space, or mates. Example: Sloths and monkeys competing for habitat due to deforestation.

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NGSS.MS-LS2-1

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What is Mutualism?

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A type of symbiotic relationship where both organisms benefit. Example: Bees pollinating flowers while obtaining nectar.

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NGSS.MS-LS2-2

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What is Parasitism?

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A relationship where one organism benefits at the expense of another. Example: Ticks feeding on the blood of mammals.

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What is Predation?

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An interaction where one organism (the predator) kills and eats another organism (the prey). Example: A lion hunting a zebra.

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NGSS.MS-LS2-2

NGSS.MS-LS2-3

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What are Biotic Factors?

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Living components of an ecosystem that affect the population of organisms. Example: Plants, animals, bacteria, and fungi.

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NGSS.MS-LS2-2

NGSS.MS-LS2-4

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What is Photosynthesis?

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The process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3