5.3&5.4: Ecosystem and Organism Interactions

What is a food chain?

• A food chain is a network of organisms where each organism consumes multiple food sources.

• A food chain is a circular sequence of organisms where each organism is the food source for the previous organism in the chain.

• A food chain is a hierarchy of organisms where each organism consumes the same food sources as the previous organism in the chain.

• A food chain is a linear sequence of organisms where each organism is the food source for the next organism in the chain.

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NGSS.MS-LS2-2

What is a predator-prey relationship?

• A predator-prey relationship is a mutualistic interaction between two organisms, where both organisms benefit from each other.

• A predator-prey relationship is a competitive interaction between two organisms, where both organisms fight for the same resources.

• A predator-prey relationship is a symbiotic interaction between two organisms, where both organisms live together and depend on each other for survival.

• A predator-prey relationship is a biological interaction between two organisms, where one organism (the predator) hunts, kills, and consumes the other organism (the prey) for food.

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NGSS.MS-LS2-4

Provide an example of a predator-prey relationship in the ocean.

• Dolphins and tuna

• Urchins and Algae

• Jellyfish and plankton

• Sharks and seals

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NGSS.MS-LS2-2

NGSS.MS-LS2-4

What is symbiosis?

• A competitive relationship between two different species where one species benefits at the expense of the other.

• A relationship between two species where one species benefits and the other is unaffected.

• A close and long-term interaction between two different species where both species benefit from the relationship.

• A relationship between two species where one species benefits and the other is harmed.

Tags

NGSS.MS-LS2-2

Name the three types of symbiotic relationships.

• mutualism

• predation

• parasitism

• competition

• commensalism

What is mutualism?

• Mutualism is a type of symbiotic relationship where one organism benefits and the other is harmed.

• Mutualism is a type of symbiotic relationship where one organism benefits and the other is unaffected.

• Mutualism is a type of symbiotic relationship between two organisms where both benefit from the interaction.

• Mutualism is a type of symbiotic relationship where one organism benefits and the other is at a disadvantage.

What is commensalism?

• A type of symbiotic relationship where one organism benefits and the other is harmed.

• A type of symbiotic relationship where both organisms benefit.

• A type of symbiotic relationship where both organisms are harmed.

• A type of symbiotic relationship where one organism benefits and the other is neither harmed nor benefited.

Provide an example of commensalism in the animal kingdom.

• Bees and flowers

• Lions and zebras

• Sharks and remoras

Tags

NGSS.MS-LS2-2

What is parasitism?

• Parasitism is a symbiotic relationship where both organisms are harmed.

• Parasitism is a symbiotic relationship where both organisms benefit.

• Parasitism is a symbiotic relationship where one organism benefits at the expense of another organism.

• Parasitism is a symbiotic relationship where both organisms are unaffected.

Give an example of parasitism in a rainforest ecosystem.

• Ant and aphid

• Leopard and monkey

• Dog and tick

• Butterfly and flower