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Symbiosis And Homeostasis PowerPoint Presentation

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Symbiosis And Homeostasis Presentation Transcript

Slide 1 - What is symbiosis? What are the different kinds of symbiosis? Examples What is Homeostasis? What are some examples of how organisms maintain homeostasis? AGENDA
Slide 2 - What is symbiosis? What it means: Two organisms that live together Temporarily or for a longer time At least one of the organisms benefits from the relationship Literal definition: the act of living together
Slide 3 - What are the different kinds of symbiosis? Mutualism Parasitism Commensalism both organisms benefit one organism benefits one organism benefits one organism is unaffected one organism is harmed
Slide 4 - Parasitism: one benefits, one is harmed Example 1: Acacia plant with ant galls Ants lay eggs on acacia tree Acacia covers the infected area with brown flesh (gall)
Slide 5 - Mutualism: both benefit Example 2: Moray Eel with Cleaner Fish Moray Eel gets a clean mouth Cleaner Fish gets a meal
Slide 6 - Commensalism: one benefits, one is unaffected Example 3: Cattle with cattle egrets Cattle stir up insects as they eat grass Egrets hang around and eat insects
Slide 7 - Commensalism: one benefits, one is unaffected Example 4: Clown fish with anemone Clown fish gets protection Anemone is unaffected
Slide 8 - Mutualism: both benefit Example 5: Antelope with Oxbird Antelope gets rid of parasites Oxbird gets a meal
Slide 9 - Parasitism: one benefits, one is harmed Example 6: Taenia worm in human eye Worm infects human blood stream Human may go blind
Slide 10 - Homeostasis Maintaining a stable internal environment.
Slide 11 - Examples of Homeostasis The thickening of fur in winter The darkening of skin in sunlight The seeking of shade in heat, The production of more red blood cells at high altitude. A dog panting to release body heat.
Slide 12 - More examples The regulation of the amounts of water and minerals in the body. This is known as osmoregulation. This happens in the kidneys. Cold-blooded animals lying in the sun to warm up. The removal of metabolic waste. This is known as excretion. This is done by the excretory organs such as the kidneys and lungs.
Slide 13 - Even More Examples The regulation of body temperature. This is mainly done by the skin. The regulation of blood glucose level. This is mainly done by the liver and the insulin secreted by the pancreas.
Slide 14 - This powerpoint was kindly donated to www.worldofteaching.com http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.