Put the letter (M for mutualism, C for commensalism, P for parasitism) which describes the type of symbiosis in numbers 26-34. Make sure you understand the characteristics of predation and competition as well!
_____ 26. A tick living on a dog
_____ 27. A bird builds its nest in a tree
_____ 28. Bees get nectar from a flower and the flower gets pollinated
_____ 29. Snails die and leave behind their shells. Hermit crabs find shells left by snails that
have died and move in.
_____ 30. The ants and the acacia tree living together and both receiving benefit.
_____ 31. The Cattle Egret follows cattle. The grazing cattle stir up insects, which the egret
then eats.
_____ 32. The lichen – a close relationship of a fungus and algae that benefits both
_____ 33. A tapeworm living in the intestines of a cow
_____ 34. The honey guide bird leads the honey badger to the bees hive; both eat the honey.
26. P (parasitism) - The tick benefits by feeding on the blood of the dog, while the dog is harmed by the presence of the tick.
27. C (commensalism) - The bird benefits by having a place to build its nest, while the tree is not affected.
28. M (mutualism) - Both the bees and the flower benefit from this relationship. The bees get nectar for food, while the flower gets pollinated.
29. C (commensalism) - The hermit crab benefits by finding a new shell, while the snails are not affected as they are already dead.
30. M (mutualism) - Both the ants and the acacia tree benefit from this relationship. The ants protect the tree from herbivores, while the tree provides food and shelter for the ants.
31. C (commensalism) - The egret benefits by feeding on the insects stirred up by the grazing cattle, while the cattle are not affected.
32. M (mutualism) - Both the fungus and algae benefit from this relationship. The fungus provides a suitable environment for the algae to grow, while the algae provide food for the fungus through photosynthesis.
33. P (parasitism) - The tapeworm benefits by feeding on the nutrients in the cow's intestines, while the cow is harmed by the presence of the tapeworm.
34. M (mutualism) - Both the honey guide bird and the honey badger benefit from this relationship. The bird leads the badger to the bees hive, where both can consume honey for food.