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A Game of X’s and O’s
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Scoreboard
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X
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O
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X Wins
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O Wins
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Small, hard-shelled animals called barnacles attach
themselves to the bodies of some whales. This increases the
barnacles’ chances of finding food. The whale is unharmed
by the barnacles. What type of relationship is this?
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Commensalism
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A ratel likes honey but has trouble finding it. The honey guide bird loves
to eat beeswax but is not big enough to break into a bee’s nest easily.
When the honey guide bird finds a bee’s nest, it chirps loudly. The ratel
moves toward the sound and tears open the nest with its sharp claws and
enjoys a meal. The honey guide bird feasts on beeswax. Which
relationship do these species illustrate?
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Mutualism
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The dodder plant wraps itself around a plant, such as a clover or alfalfa
plant. It pushes its “suckers” into the host plant and then releases itself
completely from the soil. Staying attached to the host, it obtains all of
its food from the host, which is harmed. What is this relationship?
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Home
parasitism
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In the symbiotic relationship between a honeybee and a
flower, the honeybee gets nectar and pollen to eat and also
brings pollen from one flower to another. What type of
relationship is this?
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Home
mutualism
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The relationship between a mosquito
and a human is best described as
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Home
Parasitism
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African tickbirds sit on the backs of large grazing animals
such as the Cape buffalo. The tickbirds eat bloodsucking
ticks found on the skin of the buffalo. What is the relationship
between the tickbird and buffalo?
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Home
mutualism
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Acacia trees are a home and a food source for ants.
Ants defend the trees from other insect pests . What
type of relationship is this?
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Home
mutualism
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A male golden weaver bird builds a hanging nest
made of grass and straw high on the branches of
an acacia tree. The tree is not affected by the nest.
What is this relationship?
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commensalism
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Some wasps lay their eggs on or inside living
caterpillars. When the eggs hatch, the wasp
larvae feed on the bodies of the caterpillars.
What is this relationship?
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parasitism
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