Symbiosis: The Art of Living Together

Symbiosis is a type of relationship between two different organisms. What is this relationship called?

• Mutualism

• Parasitism

• Commensalism

• Symbiosis

Which of the following is an example of mutualism?

• Clownfish and sea anemones

• Lion and zebra

• Shark and remora

• Human and dog

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In a mutualistic relationship, do both species benefit?

• True

• False

Clownfish benefit from their relationship with sea anemones by:

• providing protection from predators

• offering food to the anemones

• cleaning the anemones

• helping in the reproduction of anemones

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Commensalism is a type of relationship between two living organisms where one benefits and the other is neither harmed nor helped.

• A relationship where both organisms benefit

• A relationship where one organism benefits and the other is harmed

• A relationship where one organism benefits and the other is neither harmed nor helped

• A relationship where neither organism benefits

In the commensalistic relationship between barnacles and humpback whales, what role do the whales play?

• The whales provide a surface for barnacles to attach to.

• The whales feed on the barnacles.

• The whales clean the barnacles off their skin.

• The whales protect the barnacles from predators.

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Which of the following is an example of parasitism in the ocean?

• A) Barnacles on whales

• B) Clownfish and anemones

• C) Nematodes in crabs

• D) Plankton and whales

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The difference between intraspecific and interspecific competition is:

• Intraspecific competition occurs within the same species, while interspecific competition occurs between different species.

• Intraspecific competition occurs between different species, while interspecific competition occurs within the same species.

• Intraspecific competition occurs within different ecosystems, while interspecific competition occurs within the same ecosystem.

• Intraspecific competition occurs between different ecosystems, while interspecific competition occurs within the same species.

Barnacles benefit from their relationship with whales by:

• providing food for whales

• gaining mobility and access to nutrient-rich waters

• cleaning the whale's skin

• protecting whales from predators

The symbiotic relationship between coral and sponges as described in the passage is:

• Mutualistic, where both benefit from each other.

• Commensalistic, where one benefits and the other is unaffected.

• Parasitic, where one benefits at the expense of the other.

• Competitive, where both compete for resources.

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