Ecological Relationships

A tapeworm lives inside of a mammal's intestines. It gets nutrients from the mammal, but it harms it. The tapeworm would be called a:

• parasite

• host

• predator

• prey

Humans have bacteria that live in their intestines. These bacteria make necessary vitamins for humans and help us to digest food. In return, the bacteria get a home and nutrients. What type of relationship is this?

• mutualism

• parasitism

• competition

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A spider builds its web in a tree, but it doesn't help or hurt the tree. This is called:

• predation

• parasitism

• commensalism

Which of these is an example of mutualism?

• A bee pollinates a flower and the flower gives the bee nectar.

• A flea feeds off of a dog and harms it.

• Spanish moss hangs from a tree but doesn't affect it.

• A group of cheetahs hunts down an ostrich.

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Which of the following IS an example of competition?

• strawberry and raspberry bushes trying to grow in the same soil

• a frog eating a fly

• a tick living on a deer

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Athlete's foot fungus is a parasite that affects humans. In this example, the human is the:

• host

• predator

• prey

People provide homes and food for their pet dogs. The dogs provide companionship. This is an example of mutualism because:

• both organisms benefit

• one organism is harmed

• they are competing for things they need

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Which of the following is NOT an example of competition?

• Antlions and jumping spiders both eat ants.

• Two male birds of paradise try to attract the same female bird.

• A pack of wolves work together to try to catch a musk ox.

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Which of the following describes the relationship between the lion and the zebra?

• The lion is a predator and the zebra is its prey.

• The zebra is a parasite and the lion is its host.

• The zebra and lion are competing for the same food.

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Some animals are BOTH predators and prey. True or False?

• True

• False

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