Cooperation in Ecosystems

What is a symbiotic relationship in an ecosystem?

• A relationship between two species that is harmful to both

• A close and long-term interaction between different species.

• A relationship between two species that is short-term

• A relationship between two species that is purely competitive

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What are the three main types of symbiotic relationships?

• Mutualism, Commensalism, Parasitism

• Cooperation, Parasitism, Predation

• Predation, Mutualism, Competition

• Predation, Competition, Cooperation

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How do mutualistic relationships benefit both organisms involved?

• Mutualistic relationships benefit both organisms by providing resources, protection, or other advantages that help each organism to survive and thrive.

• Mutualistic relationships benefit both organisms by causing harm to one of the organisms involved.

• Mutualistic relationships benefit both organisms by reducing the resources available to one of the organisms involved.

• Mutualistic relationships benefit both organisms by creating competition between the organisms involved.

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Give an example of mutualism in an ecosystem.

• Bees and flowers

• Sharks and fish

• Lions and zebras

• Cats and mice

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Explain how parasitism differs from mutualism and commensalism.

• Parasitism involves the host organism benefiting from the parasite.

• Parasitism involves both organisms benefiting equally.

• Parasitism involves one organism benefiting at the expense of another.

• Parasitism involves the parasite providing a benefit to the host organism.

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What is the difference between commensalism and mutualism?

• Commensalism is a relationship where one organism benefits and the other is neither helped nor harmed, while mutualism is a relationship where both organisms benefit from each other.

• Mutualism benefits one organism and harms the other

• Commensalism benefits both organisms

• Commensalism and mutualism are the same thing

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NGSS.MS-LS2-2

Provide an example of commensalism in an ecosystem.

• Bees and flowers

• Sharks and remoras

• Lions and zebras

• Barnacles and whales

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How do organisms in a parasitic relationship interact with each other?

• One organism benefits at the expense of the other.

• They take turns benefiting each other

• They have no interaction with each other

• They both benefit from each other

Explain the concept of coevolution in the context of symbiotic relationships.

• Coevolution in symbiotic relationships refers to the evolution of only one species, with no impact on the other species

• Coevolution in symbiotic relationships means that only one species evolves while the other remains unchanged

• The concept of coevolution in symbiotic relationships is when two species evolve separately without any influence on each other

• The concept of coevolution in the context of symbiotic relationships is the reciprocal evolution of two or more species that are in a close ecological relationship, such as mutualism, parasitism, or commensalism.

Why are symbiotic relationships important in maintaining the balance of an ecosystem?

• Symbiotic relationships facilitate the transfer of nutrients and energy between different species.

• Symbiotic relationships help reduce the population of species in the ecosystem.

• Symbiotic relationships have no impact on the balance of an ecosystem.

• Symbiotic relationships only benefit one species and harm the others.

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