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Aim: The study of an environment and the organisms interacting in it is referred to as what?

Aim: The study of an environment and the organisms interacting in it is referred to as what?. Do Now: State the difference between Biotic and Abiotic factors. Homework: Castle Learning Assignment #5 Quarter 4. Ecology.

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Aim: The study of an environment and the organisms interacting in it is referred to as what?

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  1. Aim: The study of an environment and the organisms interacting in it is referred to as what? Do Now: State the difference between Biotic and Abiotic factors. Homework: Castle Learning Assignment #5 Quarter 4

  2. Ecology Scientific study of interactions among organisms and between organisms and their environment.

  3. Ecosystem • Collection of all the organisms that live in a particular place, together with their non-living environment.

  4. Biotic • Living factors

  5. Abiotic • Non-living factors

  6. Question • Which factor controls the other (abiotic or biotic)? • Abiotic regulates the amount of living organisms in an environment.

  7. Biosphere • All areas on earth where living organisms survive.

  8. Biome • A combination of ecosystems that are in the same climate and have the same set up.

  9. Population • A group of the same species in the same area.

  10. Community • A group of populations that live within the same area.

  11. Niche • A species part of job within an ecosystem. • How organisms compete or work with each other to keep the ecosystem functioning properly.

  12. Species • A group of similar organisms that can breed together.

  13. Autotrophs • Organisms that can produce their own food from either sunlight or chemical means. • Photosynthesis • Chloroplasts • Convert inorganic materials to food (organic) • Producers

  14. Heterotrophs • Organisms that must go out and obtain its own food. • Consumer • Ex. Human

  15. Producers • The base of all energy and food sources. • Without these organisms all of the food webs would fall apart. • Obtain their energy form the sun.

  16. Consumers • Herbivores • Only eat plants. • Carnivores • Only eat meat. • Omnivores • Eat both plants and meat.

  17. Energy Flow • These are the multiple pathways in which organisms use energy. • Energy must flow through an ecosystem in order for it to be self-sustaining.

  18. Energy Flow • Food Chain • Shows a linear movement of energy. • Energy starts with plants absorbing sun light • Energy moves from green plants to higher organisms through a series of different organisms.

  19. Question: • Where does energy start off in a food chain? • It comes from the sun and is found within the plants.

  20. Energy Flow • Food Web • A real life showing of how more then one organism can consume many different organisms. • These contain many food chains. Not linear.

  21. Aim: What will be on your quiz today? Do Now: Why are producers so important to an ecosystem? Homework: Find an article on how humans have impacted an ecosystem write a summary of the article, it must be at least 2 paragraphs

  22. Aim: What are some differences between each layer of energy transfer in a food web? Do Now: how is biomass affected as you go up the food web? Homework: Castle Learning #5 Quarter 4, Quiz Wednesday, Articles Due Tuesday, Progress Reports go in this week, Wednesday extra help 7:20am be there on time.

  23. Aim: What are factors that control the carrying capacity of a population? Do Now: Complete the fill in the blank. Homework: Text Book Pg 53 Questions 1-13, Quiz Tomorrow

  24. Aim: How does energy flow through an environment? Do Now: Producers must have a unique set of characteristics list off as many of these characteristics as you can. Homework: Text Book Pg. 41-44 1-5 Quiz Wed

  25. Question: • State the difference between a food web and a food chain. • Food Chain • Linear • Food Web • Shows the real movement of energy

  26. Questions: • An organisms position within an environment is referred to as its? • Niche • What is the difference between a biosphere and an ecosystem? • Biosphere is all living organisms, ecosystems all living and non-living substances.

  27. Questions: • Why are autotrophs at the base of every food chain or food web? • They can convert the suns energy to a usable form • What happens to the energy as you go up in a food chain? • It decreases

  28. Question: • What happens to the amount of energy as it gets passed through the levels of the food web? • It decreases • What is at the base of every food web? • Producers

  29. Questions: • What is a Biome? • An area with a similar climate • How come the number of primary consumers cannot be more then the number of producers? • There would be no food after awhile • Why does the amount of energy in a food chain decrease as you go up through the different levels? • Energy is lost to maintaining homeostasis

  30. Food web • Producers • These are autotrophs • Produce energy for the entire community

  31. Food Web • Consumers • Eat other organisms

  32. Food Web • Consumers • Primary – eat the green plants or autotrophs (Herbivores) • Secondary – eat primary consumers (Carnivores and Omnivores)

  33. Food Web • Decomposers • Break dead organisms and organic matter down into basic elements. Things that can be used again. • Cycle, reuse materials. Nitrogen cycle.

  34. Pyramid of Energy • This shows the lose of energy between producers, consumers, and decomposers. • Energy is lost in the forms of heat and unavailable chemical energy. • When animals move they use energy, that energy used is now lost. • Ecosystems need a constant flow of energy from the sun.

  35. Pyramid of energy

  36. Pyramid of Biomass • The decrease in energy going to up in levels means that there is less energy for animals to survive on. • Less energy means less animals. • Decrease in Biomass as you go up in levels.

  37. Questions: • What are some factors that affect the biomass of an organism? • What will happen if the number of producers decreases over time, how will that food web be affected? • If the number of tertiary consumers decreases what will happen to the other organisms of that food web?

  38. How is the hawk population regulated?

  39. Aim: How does an increase in population damage an environment? Do Now: What are the key components to allowing populations to increase? Homework:Text Book Pg 53 Questions 1-13

  40. Aim: What is symbiosis? Do Now: write a paragraph using the words below: Producer, Autotroph, Heterotroph, Primary consumer, secondary consumer, omnivore, carnivore, sun, increase, decrease. This will be collected and graded Homework: Text Book Pg 53-54 questions 14-30

  41. Aim: What are the names of the different levels of a food web? Do Now: Why would a food chain or food web need to be a cycle? Homework: Text Book pg 45-50 1-5

  42. Why did the first civilizations pick this area to live?

  43. Factors that affect the number of organisms present • Water • Nutrients • Space • Oxygen/Carbon Dioxide • Predator/ Prey • Disease • These are referred to as limiting factors

  44. Carrying Capacity • The maximum amount of a specific species that can be supported by an area. • This may slightly go up and down. • Determined by available resources. (water, space, food)

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