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Published byThomasina Palmer Modified over 9 years ago
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AIM: What are Interactions amongst Living Things
Objectives Identify interactions between organisms and related strategies. Identify harmful, beneficial, and mutual interactions
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Competition, symbiosis, mutualism, commensalism, parasitism
AIM: What are Interactions amongst Living Things Vocabulary Competition, symbiosis, mutualism, commensalism, parasitism
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What are adaptations again? What enables a fish to survive in water
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Why do soldiers where camouflage? Do animals use camouflage?
What is camouflage? Why do soldiers where camouflage? Do animals use camouflage?
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relationship between species that benefits at least one of the species
Symbiosis DEFINITION: relationship between species that benefits at least one of the species THREE DIFFERENT TYPES
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Commensalism- a relationship in which one member benefits while the other member is unaffected. Birds and trees have this type of relationship. Mutualism- is a relationship in which both members benefit. Butterflies and flowers have this type of relationship. Parasitism- is a relationship in which one member benefits and the other member is harmed. Humans have this type of relationship with certain disease causing bacteria.
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A remarkable 3-way mutualism appears to have evolved between an ant, a caterpillar, and an acacia in the American southwest. The caterpillars have nectar organs which the ants drink from, and the acacia tolerates the feeding caterpillars. The ants appear to provide some protection for both plant and caterpillar. Research of Diane Wagner, American Museum of Natural History Southwestern Research Station
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What is happening here? Leafy and spore-producing lichens on a branch of a tree. Lichens consist of a fungus and a an alga. Both can live in harsh environments where neither partner could survive or reproduce alone.
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What is happening here?
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What is happening here? Leafcutter ants carry fragments to their underground nest. The leaves will become food for fungi cultivated by the ants. The fungi then provides food for the ants.
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In the tunnels of the nest interior, members of this colony bring leaf fragments back to feed the fungus - while soldiers guard the queen, nearly hidden at right.
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What is happening here? Strep Throat
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SYMBIOSIS Mutualism commensalism Parasitism
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SYMBIOSIS Mutualism Both organisms benefit “the flower and the bee”
bacteria in your small intestine “the bird and the ox”
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SYMBIOSIS commensalism
One species benefits, the other is neither helped not harmed. “sharks that have small fish swimming near their mouths” commensalism
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SYMBIOSIS One organism either lives in or on another organism - causing it harm! Usually the host does not die, if it does - so does the parasite. (Flu, Fleas, bacteria) Parasitism
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REVIEW VOCABULARY – AND THE AIM – AND THE OBJECTIVES
AIM: What are habitats and niches? Summary REVIEW VOCABULARY – AND THE AIM – AND THE OBJECTIVES
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Competition, symbiosis, mutualism, commensalism, parasitism
Objectives Identify interactions of organism and related strategies. Identify harmful, beneficial, and mutual interactions Vocabulary Competition, symbiosis, mutualism, commensalism, parasitism
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AIM: What are habitats and niches?
Class Activity: Worksheets
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AIM: What are habitats and niches?
Homework: INTERNET QUESTIONS Paragraph
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