1) A sea anemone provides a safe home for the clownfish. The clownfish eat parasites that can harm the sea anemone. This relationship is a) Mutualism b) Commensalism c) Parasitism 2) Barnacles attach themselves to a whale's skin. This doesn't hurt the whale, but the barnacle travels through the water and filters food as it travels. This is an example of a) Mutualism b) Commensalism c) Parasitism 3) A dog can sometimes get heartworms. The worms live inside the heart and eat the tissue. This can cause the dog to die earlier in it's life. This is an example of a) Mutualism b) Commensalism c) Parasitism 4) Head lice attach themselves to a person's hair. They feast on the skin and live in the hair. The human's head becomes itchy and irritated. This is an example of a) Mutualism b) Commensalism c) Parasitism 5) The honeybee gets nectar from a variety of flowers. As it flies from flower to flower, the pollen that got stuck to it will often times pollinate another plant, thus creating more plants. This is an example of a) Mutualism b) Commensalism c) Parasitism 6) Sometimes orchids (a type of plant) will grow on the branches of tall trees. This does not hurt the tree. The reason the orchid grows up on the branches is so it can get more sunlight. This is an example of a) Mutualism b) Commensalism c) Parasitism

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