Bio review

Bio review - megameter kilometer hectometer decameter meter...

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Metric System megameter 10 6 meter kilometer km 10 3 meter hectometer 10 2 meter decameter 10 meter meter 1 meter decimeter 10 -1 meter centimeter cm 10 -2 meter millimeter mm 10 -3 meter micrometer μm 10 -6 meter nanometer nm 10 -9 meter picometer 10 -12 meter 1) conversion from high scale to low scale: multiply power difference (move decimal right) 2) conversion from low scale to high scale: divide by power difference (move decimal left) 3) conversion between metric system and English system: 1 meter = 39.37 inches 1 inch = 0.0254 meter = 2.54 centimeter (cm) Unit 2 The Great Barrier Reef I. Geographic Information - northeast coast of Australia - 1200 miles - largest coral reefs in the world II. Corals: Structure and Function 1. Coral reefs are mostly made of the dead stuff: the external skeleton of coral polyps- the limestone, calcium carbonate. 2. Coral polyp: each circular, cup-shaped area housed one coral polyp. 3. Body plan- bilateral symmetry three layers of cells: - inner layer: epidermis - middle layer: mesoglea - outer layer: gastrodermis tentacles 4. Cnidocytes: cells in tentacles that contain nematocysts Nematocysts: thread capsules, poisonous or sticky Help capture prey
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Triggered by cnidocil 5. Nervous System 6. Algae: symbiosis Symbiosis – mutualism - parasitism - commensalisms benifit 7. Reproduction: - sexual - asexual 8. Factors limiting growth of corals: - Temperature 20-36˚C (68-96˚F) Best 25-30˚C (77-86˚F) - Depth < 50m (167 feet) Best 5-28m (17-93 feet) III. Reefs Formation Types: Fringing Reef Barrier Reef Atoll Theory of Reef Formation: Darwin’s and Daly’s IV. Heron Island: Biodiversity V. Contributions of coral reefs to humans VI. Crown-of-Thorns starfish problem Laboratory on Hydra I General features. II. Comparison with coral polyps Similarities- body plan, digestion, excretion, circulation, nerve network, etc. Differences- locomotion, free living, fresh water habitat. Unit 3 Diversity of Life 1) Species: basis units in classification 2 million different species of living organisms have been described. Individual variation within a species Species: refer to populations, groups of similar organisms, not to any real, single individual. 2) Ancient view: species was a fixed, unchanging unit.
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Bio review - megameter kilometer hectometer decameter meter...

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