Relationships Between Organisms Nick Easley Science Grade Level

Relationships Between Organisms Nick Easley

Science �Grade Level: 5 th �Summary: The purpose of this powerpoint is to inform students about interspecific relationships between organisms within an ecosystem. (i. e. mutualism, commensalism, parasitism) �Learning Objective: Given the information in the Powerpoint presentation, students will answer the given questions with 100% accuracy. �Content Standard: GLE 0507. 2. 2 Explain how organisms interact through symbiotic, commensal, and parasitic relationships. �SPI 0507. 2. 2 Distinguish among symbiotic, �commensal, and parasitic relationships.

Interspecific Relationships �There are many organisms in each ecosystem. Different species of organisms interact with each other through various interspecific relationships. Today we are learning about symbiotic relationships. These include… �Commensalism �Mutualism �Parasitism

Symbiotic Relationships �Use the link below to understand the definition of a symbiotic relationship. �http: //www. thefreedictionary. com /Symbiotic+Relationships

Commensalism �One organism benefits from the relationship while the other organism neither benefits nor is harmed.

Mutualism �A relationship in which both organisms benefit each other.

Parasitism �In a relationship of parasitism, one species harms the other in order to benefit itself.

Symbiotic Relationships �This website shows good interactive examples of mutualism, commensalism, and parasitism. �http: //www. vtaide. com/png/symbiosis. htm

Symbiotic Relationships �: //www. youtube. com/watch? v=z. Sm. L 2 F 1 t 81 Q &noredirect=1 �Watch this video about symbiotic relationships in an underwater ecosystem.

Select the Correct Answer �What is a close, prolonged association between two or more different organisms of different species that may, but does not necessarily, benefit each member? A. Symbiosis B. Mutualism C. Commensalism D. Parasitism

Select the Correct Answer �What type of relationship does the clownfish have with the anemone? A. Mutualism B. Commensalism C. Parasitism

Select the Correct Answer �Which is an example of parasitism? A. A bird eating insects off of a buffalo. B. A tic on a dog’s ear. C. A shrimp removing parasites from a fish.

Select the Correct Answer �What is an example of mutualism? A. Barnacles anchored to a whale for food. B. Otters who lie on kelp and eat animals that would eat the kelp. C. Bed Bugs.

Bonus Question! �What famous cartoon fish lived in a mutualistic relationship with his own house? �Hint: He lived there with his dad…

NEMO!

Summary �The students have watched a video and gone to websites to learn about symbiotic relationships. They should now have a better understanding of mutualism, commensalism, and parasitism. They also answered questions to exercise their new knowledge.