Understanding Symbiosis Video

Which of the following is an example of symbiosis?

• A mother bear taking care of her cub
• 
  A married couple who agree to split their rent and share housework duties
• A worm living in a cow's intestine
• One chimp cleaning and grooming the hair of another chimp

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What might happen if we didn't have enough bacteria living in our intestines?

• We might not be able to go to the bathroom
• We might not be able to digest certain kinds of food
• We might get sick less often
• Viruses and parasites might be able to invade our digestive systems

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How is commensalism (C) different from mutualism (M)?

• In C, one species benefits while the other is unharmed; in M, both species benefit

• In C, one species is harmed while the other benefits; in M, both species benefit

• In C, neither species is harmed; in M, one species is harmed

• In C, both species benefit; in M, one species is harmed

Which of the following is an example of a parasite?

• A flea
• An orchid flower
• An Egyptian plover (bird)
• The bacteria that live in human intestines

When a honeybee pollinates flowers, the bee gets access to nectar, while the flowers get the chance to reproduce. This is an example of:

• amensalism
• commensalism
• parasitism
• mutualism

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Remoras are fish that swim alongside sharks, eating scraps that the sharks leave behind. This is an example of:

• amensalism
• commensalism
• parasitism
• mutualism

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Which of the following is an example of a host organism?

• An Egyptian plover (bird)
• An orchid flower
• A dog with fleas
• A botfly

Clownfish live inside sea anemones. They eat creatures that harm enemones, while anemones protect clown fish from predators. This is an example of:

• mutualism
• commensalism
• parasitism
• amensalism

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Mistletoe is a plant that grows in the branches of other plants. It grows by taking nutrients and water from these plants. This is an example of:

• mutualism
• commensalism
• parasitism
• amensalism

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What can you INFER about parasites from the information in the movie?

• They are evil
• They are extrememly small
• They only affect mammals
• Most of them cannot survive without a host organism