Ecosystems and Interactions

Place where an organism lives, organisms' home

• habitat

• overgraze

• thrive

• global warming

problem that occurs when grazing animals like cattle and sheep eat too much vegetation (grass)

• habitat

• overgraze

• thrive

• global warming

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

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Which of these describes a mutually beneficial relationship between two organisms?

• A dog with worms in its intestine

• A turtle and a snail that both eat grass live in a river

• A honeybee pollinating a plant and receiving nectar for food

• A small fish attached to a shark, eating tiny pieces of the shark's food as it floats

Which of the examples below can BEST be described as mutualism between animals?

• A tapeworm lives in the intestine of a bird and consumes the food that the bird has eaten

• Mountain lions and wolves fight each other for the same deer

• A bird eats parasites off a rhinoceros while the rhinoceros provides protection to the bird

• Rats live in the garbage dump of a town and rarely interact with people

Tags

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Cattle egrets forage (feed) in fields among cattle. The egret gets easy access to flying insects stirred up by the cattle, and the cattle don't care if they are there or not.

• mutualism

• commensalism

• competition

• parasitism

A tapeworm and a cat have this type of relationship.

• mutualism

• parasitism

• commensalism

• competition

This is known as a relationship in which one organism benefits, while the other is unaffected.

• Parasitism

• Mutualism

• Immigration

• Commensalism

A mosquito feeds off of the blood of different organisms. This usually causes discomfort to the organism and sometimes disease and death. This is an example of:

• Parasitism

• Decomposition

• Commensalism

• Mutualism

Tags

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This is known as a relationship in which both organisms involved benefit. 

• Predator-Prey

• Commensalism

• Mutualism

• Decomposition

Tags

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A feeder fish usually follows behind sharks to pick up food scraps that they leave behind. The fish gets food and the shark is unaffected. This is an example of:

• Mutualism

• Commensalism

• Parasitism

• Decomposition

Tags

NGSS.MS-LS2-2