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Chapter 2: Principles of Ecology

Chapter 2: Principles of Ecology. 1. What is Ecology?. 2. What is a Longitudinal analysis?. 3. What is the Biosphere?. Your text here. 4. Limiting factors are things within an ecosystem that will naturally CONTROL the size of the population.

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Chapter 2: Principles of Ecology

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  1. Chapter 2: Principles of Ecology

  2. 1. What is Ecology?

  3. 2. What is a Longitudinal analysis?

  4. 3. What is the Biosphere?

  5. Your text here

  6. 4. Limiting factors are things within an ecosystem that will naturally CONTROL the size of the population.

  7. 5. Within the biosphere, the living things interact with both living and non-living things.

  8. 6. Differentiate Biotic and Abiotic factors found within the Biosphere:

  9. 7. What is the difference between a habitat and a niche?

  10. The habitat is where the organism lives.

  11. 8. Identify the following community interactions:

  12. 9. What is SYMBIOSIS?

  13. Describe the following symbiotic relations that exist

  14. Mutualism

  15. ANOTHER EXAMPLE OF MUTUALISM

  16. COMMENSALISM Two organisms live together. One benefits and the other is unaffected. Ex. Orchids growing in a tree. The tree holds the orchid up to the sunlight. The orchid does nothing for the tree.

  17. Spanish moss in a tree is another example of commensalism.

  18. PARASITISM

  19. Section 2:2

  20. 11.What is the ultimate energy source that allows life to exist on the Earth?

  21. THE SUN

  22. 12. Identify the following terms involved in the movement of energy through an ecosystem:

  23. AUTOTROPH

  24. TWO TYPES OF AUTOTROPHS:

  25. Photosynthetic Autotrophs Plants. Absorbs solar energy from the sun and puts it into sugar molecules

  26. Chemosynthetic Autotroph

  27. HETEROTROPHS

  28. Five types of Heterotrohs

  29. Herbivore • The herbivore only eats plants. Example cow, rabbit • The herbivore have a LONG digestive tract in order to break down the plant • A population of bacteria live within the intestine to break down the plant matter.

  30. Carnivore • The carnivore only eats meat. • Ex. Lion, Bob cat • Short digestive tract.

  31. Omnivore

  32. Detritivore • Eats rotted materials in the soil or stream bottoms. • Their body waste helps recycle nutrients. • Ex. Earthworms, insects, catfish

  33. Decomposer

  34. 13. What is a food chain?

  35. A simple model that shows how energy flows through an ecosystem.

  36. 14. What is a trophic level? • Each step in the food chain is called a trophic level.

  37. 15.What is a food web. A model representing the many interconnected food chains and pathways in which energy flows through a group of organisms.

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