Competition and Interactions in Ecosystems

Non-Living things that affect the ecosystem

• biotic

• abiotic

• dead

• zombies

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Living things that affect the ecosystem.

• rocks

• pokemon

• abiotic

• biotic

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Competition in an ecosystem occurs when

• animals get bored.

• more than one individual or population in an ecosystem relies (needs) the same limited resource.

• there is more than enough of a resources for every living organism.

• resources are unlimited.

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When an organism depends on a factor for survival, this is called a ______________________ interaction.

• independent

• questionable

• dependent

• expendable

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A system made up of all the biotic and abiotic factors in an area and all the interactions among them.

• Ecosystem

• Niche

• Adaptation

• Nutrasystem

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A limited resource in an ecosystem is

• something that is appreciated by organisms and is not infinite (unlimited) in the environment. If the resource runs out or is destroyed, the organisms will be okay.

• something that is unlimited and will last forever, organisms and populations may compete, but only for fame and glory.

• something that is needed by organisms and is not infinite (unlimited) in the environment. If the resource runs out or is destroyed, then the organisms that need it will likely die off.

• something that is not needed by organisms and is not infinite (unlimited) in the environment. If the resource runs out or is destroyed, then there will be no effect on the organisms.

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A self-contained living thing. Examples include bacteria, douglas fir tree, wolf, turkey, madrone, salmon.

• ecosystem

• organism

• cell

• abiotic

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A group of individuals from the same species living and interacting together in the same ecosystem is called a

• organism.

• troup.

• zebra festival.

• population.

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A consumer

• can use chemosynthesis to chemically convert hydrogen sulfide, CO2, and O2 into sugar.

• can use photosynthesis to turn sunlight, water, and CO2 into sugar.

• needs to get its energy from eating or consuming another organism,

• can make its own food.

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Which of the organisms in the diagram are producers?

• Hawks

• Rabbits

• Snakes

• Grass

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