1. Daily Jumpstart Give examples of nutrients. Why are nutrients essential for living organisms?

2. Next week! Monday your two science articles are due. Monday you will have a quiz on the levels of the biosphere, food webs, and ecological pyramids.

3. In order to survive, a hawk eats 30 pounds of lizards in a month. In that same month in order to survive, those lizards have to eat 300 pounds of crickets. How many pounds of grass do those crickets have to eat in order to survive?

4. A snake that eats a frog that has eaten an insect that fed on a plant is a a.first-level producer. b.first-level consumer. c.second-level producer. d.third-level consumer.

5. Only 10 percent of the energy stored in an organism can be passed on to the next trophic level. Of the remaining energy, some is used for the organism’s life processes, and the rest is a.used in reproduction. b.stored as body tissue. c.stored as fat. d.eliminated as heat.

6. Today Discuss First Biogeochemical Cycle Watch Video on Cycle Create Cycle of your Ecosystem Make observations of Ecosystem

7. BIOGEOCHEMICAL CYCLES 3-3 http://www.animationlibrary.com/search/?keywords=recycle

8. Energy is not the only thing that moves through the ecosystem. Atoms are never destroyed... only transformed. http://mff.dsisd.net/Environment/Cycles.htm Take a deep breath. The atoms you just inhaled may have been inhaled by a dinosaur millions of years ago. http://educ.queensu.ca/~fmc/august2004/pages/dinobreath.html ENERGY & MATTER

9. 4 ATOMS make up 95% of the body in most organisms CARBON HYDROGEN OXYGEN NITROGEN Elements, chemical compounds, and Other forms of matter are passed from One organism to another and from one Part of the biosphere to another in: ___________________________ BIOGEOCHEMICAL CYCLES

10. Complete for your Ecobottle Complete one water for your ecobottle. Use all of the biotic and abiotic factors you have inside your bottles. The classroom environment may also contribute to the cycles.

11. Ecobottle Observations Date: 2/25/11 Time: General impressions: This is the first section you complete. Writing should be qualitative and should include observations like: the bottle smells like ??, water color? Each Chamber: Write Quantitative observations. There is 1 fish left. There are now 5 grasshoppers instead of 3. There is a 6 cm ring of mold around the cap.

12. PH ONLINE LINK Put in code: cbp-2033 Choose Start Image edited from: http://www.cotf.edu/ete/modules/msese/earthsysflr/water.html WATER CYCLE

13. evaporation condensation http://www.radio-canada.ca/jeunesse/fd6/000_images/cat/c_buee_c.gif

14. The return of water to the surface in the form of rain, snow, sleet, hail, etc. = ____________________ The evaporation of water from the surface of plant leaves = ________________ http://www.css.cornell.edu/faculty/hmv1/watrshed/Etrans.htm TRANSPIRATION PRECIPITATION

15. BIOGEOCHEMICAL CYCLES

16. Cycle Expert In your group of 3 you will be an expert on ONE cycle. Gather information from your text book in order to answer the questions. Answer questions in COMPLETE sentences in your NOTEBOOK! Not in a complete sentence? = NO credit

17. Warm-Up How have we as humans disrupted the water, carbon, and nitrogen cycle? How can we fix this problem?

18. Warm-Up 1.The movement of water from the surface of a plant is termed? 2. What is the difference between this and regular evaporation? How are they similar?

19. Today You have 10 minutes to finish answering questions. You will then go back to your group and teach your cycle to the group. The rest of the group will listen and write down answers to the questions. NO JUST COPYING ANWERS you must talk out the answers! Water cycle first, then Carbon, then Nitrogen

20. In the nitrogen cycle, bacteria that live on the roots of plants A.Break down nitrogen compounds into nitrogen gas. B.Denitrify nitrogen compounds C.Change nitrogen gas into plant proteins D.Change nitrogen gas into ammonia

21. Which of the following is NOT recycled in the biosphere? a.waterc.carbon b.nitrogend.energy

22. What is the process by which bacteria convert nitrogen gas in the air to ammonia? a.nitrogen fixation b.excretion c.decomposition d.denitrification

23. How is carbon stored in the biosphere? a.in the atmosphere as carbon dioxide b.underground as fossil fuels and calcium carbonate rock c.in the oceans as dissolved carbon dioxide d.all of the above

24. The movements of energy and nutrients through living systems are different because a.energy flows in one direction and nutrients recycle. b.energy is limited in the biosphere and nutrients are always available. c.nutrients flow in one direction and energy recycles. d.energy forms chemical compounds and nutrients are lost as heat.

25. Biogeochemical cycling ensures that a.human activity will have no effect on elements, chemical compounds, and other forms of matter. b.living organisms will not become limited in any one nutrient. c.nutrients will be circulated throughout the biosphere. d.many nutrients will not reach toxic concentrations in the biosphere.

26. Ecobottles Diagram of ecobottle: Webmaster Food Web: Lead biologist Organism drawings: construction worker 5 day hypotheses: everyone Water and carbon cycle: everyone Observations: Everyone –This should be your 4 observation

29. CARBON CYCLE CO 2 in atmosphere CO 2 in ocean BIOLOGY; Miller and Levine; Prentice Hall; 2006

30. 4 main CARBON reservoirs in BIOSPHERE CO 2 in atmosphere CO 2 in Ocean BIOLOGY; Miller and Levine; Prentice Hall; 2006 1.In ____________ as CO 2 gas 2.In _______ as dissolved CO 2 gas 3.On _______ in organisms, rocks, soil 4.__________ as coal & petroleum (fossil fuels) and calcium carbonate in rocks atmosphere ocean land Underground

31. Where does CO 2 in atmosphere come from? CO 2 in atmosphere CO 2 in Ocean BIOLOGY; Miller and Levine; Prentice Hall; 2006 1.________________ 2.______________ 3._________________ 4.____________ of dead organisms Volcanic activity Human activity (burning fossil fuels) Cellular respiration Decomposition

32. WHY IS CARBON IMPORTANT? Found in all the _______________ of cells: carbohydrates, proteins, nucleic acids, lipids Image by Riedell http://web.jjay.cuny.edu/~acarpi/NSC/12-dna.htm BUILDING BLOCKS

33. Carbon Cycle Questions –In what ways do humans contribute to the Carbon Cycle ? –Looking at the diagram you drew, what processes cause carbon dioxide to be released into the atmosphere? What process takes it in? –In what form is Carbon found in oceans? Where is it found, and what eventually happens to it?

34. Warm-Up Write least three questions about any of the topics covered so far in ecology.

35. Review of the Carbon Cycle Speculate on possible pathways a carbon atom might follow over a short and long time and possible reservoirs where the carbon atom might be found.

36. Cut a piece of paper into squares Label each paper with a possible “reservoir” where you think a large amount of carbon would be found in the Earth’s system. Decide which of the reservoirs represents the largest and smallest reservoir of carbon atoms on a global scale. Write the phrase 'most carbon', and 'least carbon' on that piece of paper.

37. Arrange the 4 papers in a pattern that represents the carbon cycle. Draw in arrows and label the arrows indicating the process that the carbon atom might have to go through in order to move from one reservoir to the other. –Ex. atmosphere  (photosynthesis)  plants

38. N 2 in Atmosphere NH 3 NO 3 - and NO 2 - Section 3-3 NITROGEN CYCLE BIOLOGY; Miller and Levine; Prentice Hall; 2006

39. 79% of the atmosphere is made up of NITROGEN gas (N 2 ) Image by Riedell http://web.jjay.cuny.edu/~acarpi/NSC/12-dna.htm BUT we _____ use the nitrogen gas we breathe! The bond in N 2 gas is so strong it can only be broken by _______________ ____________________ CAN’T lightning Volcanic activity few special bacteria

40. http://www.slic2.wsu.edu:82/hurlbert/micro101/images/101nodules21.gif Bacteria that live ______________ And on the roots ofplants called _________, take nitrogen from the atmosphere and turn it into ______________, a form that is usable by plants. THIS PROCESS IS CALLED _________________ in the soil legumes AMMONIA (NH 3 ) NITROGEN FIXATION

41. Image from: http://www.utdallas.edu/images/departments/biology/misc/gonzalez-image.jpg and http://www.cibike.org/CartoonEating.gif modified by Riedell Other bacteria in the soil convert ammonia into ________________ & _________________ which plants can also use. The nitrogen we need for proteins, ATP, and nucleic acids comes from the ___________ ___________ we breathe! NITRATES (NO 3 - ) FOOD WE EAT NOT THE AIR & NITRITES (NO 2 - )

42. N 2 in Atmosphere NH 3 NO 3 - and NO 2 - Section 3-3 NITROGEN CYCLE BIOLOGY; Miller and Levine; Prentice Hall; 2006

43. Bacteria that live ______________ also carry out the reverse process ___________ → _____________. THIS PROCESS IS CALLED _________________ in the soil NITRATES & NITRITES NITROGEN GAS DENITRIFICATION

44. Questions for the Nitrogen Cycle –How do the consumers in the nitrogen cycle differ from the producers? –Looking at the diagram, where do the three forms of nitrogen found in land (NH3, NO3- and NO2-) come from?

45. PHOSPHORUS CYCLE Weathering wears away rocks and sediments and releases phosphate into soil and water Image from: Pearson Education Inc; Publishing as Pearson Prentice Hall Producers absorb phosphate from soil and water Phosphate moves through food web Phosphate returns to soil and water from waste or decomposition Sediments form “new land” to complete cycle

46. Phosphorus cycle is only biogeochemical cycle that does NOT cycle through the ______________ BIOLOGY; Miller and Levine; Prentice Hall; 2006 atmosphere

47. Activity Look at the cycles posted in the corners of the room. In a minute you will be moving to one of these corners. Think about which corner you know most about. Write your answer on your paper. I will give you focus questions to discuss with students from your corner.

48. Questions What does this cycle look like? Draw a picture of it with the other members in your corner.

49. Question #2 What elements are involved in this cycle.

50. Question #3 Explain the biological importance of this cycle. How does it impact living organisms?

51. Question #4 What would happen if this cycle were disturbed?