AGUSTINIANO CIUDAD SALITRE SCHOOL SCIENCE AND ENVIRONMENT EDUCATION WORKSHEET INTERACTION BETWEEN SPECIES

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1 AGUSTINIANO CIUDAD SALITRE SCHOOL SCIENCE AND ENVIRONMENT EDUCATION WORKSHEET INTERACTION BETWEEN SPECIES TYPES OF SYMBIOSIS: There are 3 basic types of symbiosis. Don t forget that symbiosis is the relationship between two organisms of different species that benefits one or both organisms. M:Mutualism- a symbiotic relationship that benefitsboth organisms involved. C:Commensalism- a symbiotic relationship that benefits one organism and the other is not helped or harmed. P:Parasitism- a symbiotic relationship that benefits one organism and the other is harmed. I. Put the letter (M,C,P) by the statement that best describes the type of symbiosis. 1. A tick living on a dog. 2. The honey guide bird leading the honey badger to the bees hive, both eat the honey. 3. A tapeworm living in a 6thgrade students intestines. 4. A bird building their nest in a tree. 5. The hermit crab carrying the sea anemone onits back. 6. The bristle worm living with the hermit crab. 7. Head lice living on a human scalp. 8. Mistletoe putting its roots into its host tree. 9. The ants and the acacia tree living together and both receiving benefit. 10. The egret, an insect eating bird, graze near some herbivores mouth. 11. Orchids growing in tall tropical trees, thetrees are not harmed but the orchids get sunlight. 12. Bacteria living on a human s skin. 13. The remora hitching a ride on a shark. 14. Barnacles living on a whale. 15. Bees and a flower. 16. Bacteria living in the intestines of a cow to help it break down cellulose. 17. The clownfish and the sea anenemoe.

2 18. A sixth grader and their pet. 19. The Rhino and the tick bird. 20. The lichen- a close relationship of a fungus and an alga that benefits both. II. Complete the following crossword Down 1. A relationship in which two organisms live together; one benefits while the other is Unaffected 2. A group of organisms, all of the same species that live in the same area 3. A relationship between two organisms in which one is harmed and the other benefits 5. An organism that derives nutrition from a host causing harm to the host 6. Living together Across 4. An animal that a predator kills and eats 5. An animal that eats another animal 7. A close relationship between two organisms in which both organisms benefit 8. A living thing Word Bank: commensalism, prey, parasitism, population, organism, symbiosis, predator, mutualism, parasite

3 III. Symbiotic Relationships Read the relationships on each box. Put it on the sheet under one of the symbiotic relationships: Predator-Prey, Parasitism, Mutualism or Commensalism. On each box put a plus sign next to the name of the species if it is positively affected by the relationship, put a negative sign if the species is negatively affected by the relationship. If the species is neither harmed nor benefited by the relationship, put a 0 next to the name. Bacteria SpanishMoss Dogs Squirrels Human Intestines Trees Fleas Trees Whales Butterfly Figs Remora Barnacles Flower FigWasps Sharks TawnyOwl Field DiggerWasp Clown Fish Venus flytrap Mice Fly Sea anemone Insects Rafflesiaplant Ants Tapeworm Trees Vine Acacia Trees Mammal Orchids Human head Trees Yuccamoth Eagle Lice Mistletoe Yuccaplant Rabbit Commensalism Mutualism Parasitism Predator/Prey

4 IV Read through each scenario and determine whether it is a case of parasitism, predation, competition, mutualism, commensalism. In COMPLETE SENTENCES, explain the reasoning behind each choice. 1. Shrimp and Sea Anemone: The shrimp is immune to the stinging tentacles of the sea anemone. By hiding in the sea anemone, the shrimp is protected from predators. 2. Cattle Egrets and Livestock: As they graze, cattle stir up insects, which are eaten by the cattle egrets. 3. Tapeworm and Dog: The tapeworm attaches to the intestinal wall of the dog and takes nutrients consumed by the dog. 4. Ant and Acacia Tree: The ant burrows into a thorn of the acacia tree to live and eat sugar secreted by the tree. The ants benefit the tree by attacking predators. 5. Cleaner Fish and Shark: The cleaner fish feeds on parasites in the shark's mouth and gills. 6. Tick and Cow: The tick burrows into the cow's skin to suck blood. 7. Komodo Dragon and Water Buffalo: The komodo dragon bites a water buffalo to inject it with venom. About 1 week later, the water buffalo dies of poisoning and is eaten by the komodo dragon. 8. Tigers and Golden Jackals: Lone golden jackals often follow tigers to feed on the tiger s kills once the tiger has finished eating. Resources:

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