Competition and Organism 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 are fighting for the same limited resource.

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

• resources are unlimited.

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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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Plants compete for air, water, ________ within ecosystems.

• space, and sound
• sunlight, and wind
• space, and sunlight

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Hawks and owls eat the same type of food and struggle with one another to get their food. What is this an example of?

• Competition

• Biotic factor

• Symbiosis

• Population

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Hawks and brown bears live together in the same habitat. There will be competition between the hawks and the brown bears only if which of the following is true?

• Brown bears hibernate during the winter while hawks remain active.

• Pesticides in the fish population affect hawks’ eggs and decrease their population.

• Both brown bears and hawks feed on the same species of fish.

• Both Shanna and Savanna feed on the same species of snakes.

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An increase in which of the following factors is likely to contribute to competition between two members of the same species living in a certain habitat?

• Available food resources

• Population of the species

• Annual snowfall

• Overall size of the habitat

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A student wants to investigate competition between two organisms. For the investigation, it is most important that the student should choose organisms that –

• reproduce at a faster rate.

• are both active during the night.

• have the different adaptations.

• require the same resources.

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Competition becomes more important as the number of individuals ______ or the availability of resources _________.

• increases, decreases

• increases, increases

• decreases, increases

• decreases, decreases

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