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12A Interpret relationships (predation, parasitism, commensalism, mutualism, competition) among organisms.

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Presentation on theme: "12A Interpret relationships (predation, parasitism, commensalism, mutualism, competition) among organisms."— Presentation transcript:

1 12A Interpret relationships (predation, parasitism, commensalism, mutualism, competition) among organisms

2 An organisms role in its environment… An organisms habitat is the area where it lives. In any environment, every species fills a unique niche. A niche includes the conditions and resources a species’ needs for survival and how it obtains these resources.

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4 Relationships between Organisms

5 COMPETITION THE DEMAND BY TWO OR MORE ORGANISMS FOR LIMITED RESOURCES SUCH AS FOOD, WATER OR SHELTER

6 PREDATION INTERACTION IN WHICH ONE ORGANISM CAPTURES AND FEEDS ON ANOTHER ORGANISM

7 PREDATOR LION THE ORGANISM CAPTURING AND FEEDING ON ANOTHER ORGANISM (THE PREY)

8 PREY HIPPO ORGANISM BEING EATEN

9 PARASITISM SYMBIOTIC RELATIONSHIP IN WHICH ONE ORGANISM LIVES IN OR ON ANOTHER ORGANISM & CAUSES IT HARM

10 PARASITE TICK ORGANISM LIVING IN OR ON ANOTHER ORGANISM CAUSING IT HARM

11 HOST DOG ORGANISM BEING HARMED BY PARASITE

12 COMMENSALISM SYMBIOTIC RELATIONSHIP IN WHICH ONE ORGANISM BENEFITS & ANOTHER ORGANISM IS NEITHER HARMED NOR BENEFITS

13 Whale & Barnacle

14 Egrets & Cattle

15 MUTUALISM SYMBIOTIC RELATIONSHIP IN WHICH BOTH ORGANISMS BENEFIT

16 Clown Fish & Anemone

17 Flowers & Bees

18 12C Analyze the flow of matter & E through trophic levels using various models (food webs, food chains, and ecological pyramids).

19 AUTOTROPH aka PRODUCER an organism that captures E from sunlight or chemicals & use it to produce its own food ex: most plants

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21 HETEROTROPH aka CONSUMER an organism that obtains E from the food it consumes ex: humans, snakes, rhino, jaguar

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23 PRIMARY CONSUMER

24 SECONDARY CONSUMER

25 TERTIARY CONSUMER

26 QUATERNARY CONSUMER

27 HERBIVORE Organism that obtains E from eating plants

28 OMNIVORE Organism that obtains E by eating both plants & animals

29 CARNIVORE Organism that obtains E by eating animals

30 DETRITIVORE aka DECOMPOSER Organism that feeds on dead plant & animal material & other dead matter

31 SCAVENGER Animals that eat dead animals Ex: Vultures, Tasmanian devils

32 FOOD CHAIN the sequence of who eats whom in a biological community (an ecosystem) to obtain nutrition. starts with the primary energy source Ends with the top predator

33 FOOD CHAIN Quaternary consumer Tertiary consumer Secondary consumer Primary consumer Producer

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37 FOOD WEB Let’s put some food chains together…

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39 Label the organisms in your notes. *organisms can have more than 1 label.

40 ECOLOGICAL PYRAMID Represents the producers and consumers in an ecosystem in a pyramid shaped-diagram.

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42 Where does all E come from?

43 As you go up trophic levels, 10% of Energy is lost. Why?

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45 Most of the E is available at what level?

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49 Biological Magnification the increasing concentration of toxic substances within each successive link in the food chain

50 As you go up trophic levels, the number contaminants increases.

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52 Fill in the boxes with dots to represent the toxic contaminant.

53 Do your boxes look like this?


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