Good Buddies Homework Name ______Hr. ____

Identify the relationship of each of the organism pairs below as commensalism, mutualism, or parasitism.

Animals Relationship Comments deer/tick Ticks feed on deer blood causing the deer to become weakened. barnacle/whale Barnacles create home sites by attaching themselves to whales. This neither harms nor benefits the whales. ostrich/gazelle Ostriches and gazelles feed next to each other. They both watch for predators and alert each other to danger. Since the visual abilities of the two species are different, they each can identify threats the other animal would not see. remora/shark Remoras attach themselves to shark’s body. They then travel with the shark and feed on the left over food scraps from the shark’s meal. The shark is not affected by the remoras. oxpecker/ Oxpeckers feed on the ticks found on rhinos. rhinoceros The rhinos get the ticks removed. bee/marabou The stork uses its saw-like bill to cut up the stork dead animals it eats. As a result, the animal carcass is accessible to some bees for food and egg laying. honey guide Honey guide birds alert and direct badgers to bird/badger bee hives. The badgers then expose the hives and feed on the honey first. Then the honey guide birds eat. yucca plant/ Yucca flowers are pollinated by yucca moths. yucca moth The moths lay their eggs in the flowers where larvae hatch and eat some developing seeds. hermit Hermit crabs live in shells made and then crab/snail shell abandoned (left and not wanted) by snails.

mistletoe/ Mistletoe takes water and nutrients from the spruce tree spruce tree, harming the tree. silverfish/army Silverfish live and hunt with army ants. They ants share prey. cuckoo/ warbler A cuckoo may lay its eggs in a warbler’s nest. The cuckoo’s babies are bigger than a warbler’s and eat more food. Sometimes the baby warblers don’t get enough food and die. cowbird/buffalo As buffalos walk through grass they stir up insects. The cowbirds then eat the insects. wrasse fish/ Wrasse fish feed on the parasites found on black sea bass the black sea bass’s body. mouse/flea A flea feeds on a mouse’s blood leaving the mouse weakened.