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1 st Law: Everything is connected to everything else

1 st Law: Everything is connected to everything else. Humans and other species are connected (dependent) on a number of other species. BIOTIC COMPONENTS. 1 st Law & Food webs. Eat or be eaten . Autotroph / primary producer.

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1 st Law: Everything is connected to everything else

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  1. 1st Law: Everything is connected to everything else Humans and other species are connected (dependent) on a number of other species.

  2. BIOTIC COMPONENTS

  3. 1st Law & Food webs Eat or be eaten.

  4. Autotroph / primary producer Makes own food (glucose) from primary energy source (sun or deep-sea thermal vents) Photosynthesis Chemosynthesis Image source: http://hartm242.wordpress.com/tag/chemosynthesis/ PPP: A plant = producer = photosynthesis

  5. Heterotroph/ consumer Hetero (others) troph (nutrition) • Cannot make their own food • Must eat other living organisms http://scratch.mit.edu/projects/mrshart/933775

  6. Herbivore or primary consumer • Folivore (leaves) • frigivore (fruit) • granivore (seed) palynivore (pollen) xylophage (wood) Eat producers mucivore (sap) nectivore (nectar)

  7. Secondary consumers Eat consumer level below them Carnivore = meat-eaters Omnivore = eat animals and plants Predator- hunting & eating Prey- hunted & eaten Quaternary consumers eat tertiary consumers (eagle eating a snake)

  8. Top/ Apex predator • The top-end of the food chain Is not eaten by anything else (is not prey) because it has little/no natural enemies* Humans often not considered natural enemies

  9. Detritivores • Eat detritus: plant and animal remains, shed parts (skin, antlers, leaves), and wastes • Scavengers- detritivores that specialized in carrion (dead animal bodies) or other animal wastes

  10. Decomposers(aka saprotrophs) • gets its energy from non-living organic matter. • Help speed up the decaying process. Cool fact: A gram of soil typically contains 40 million bacterial cells, and the bacteria on Earth form a biomass that exceeds that of all living plants and animals. Fungi eat the dead matter by releasing acid to melt the decaying material, then sucking in all the acid, along with the melted material

  11. TROPHIC LEVELS http://www.mhhe.com/biosci/genbio/virtual_labs_2K8/labs/BL_21/index.html

  12. The difference between webs and chains

  13. http://www.microscopy-uk.org.uk/ponddip/index.html

  14. top predator

  15. Image Source: http://www.mesa.edu.au/ Image Source: worldslife-nisha.blogspot.com Where do you find: The most number of organisms Greatest amount of biomass (amount of living matter) Least amount of energy 10,000 fresh water shrimps support 1,000 bleak fish, which in turn support 100 perches followed by 10 northern pikes and finally one osprey.

  16. What’s On The Menu Data Sheet List each organism in your EcoColumn, including any “newcomers” since you first stocked it. For each organism, identify its source(s) of energy and classify it as a producer, consumer, or decomposer. Use this data to construct a food web for your EcoColumn on the Food Web Chart.

  17. Biotic Factors and the E-column In your e-column diagram, classify the organisms whether these are autotrophs, heterotrophs, detritivores, or decomposers.

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