Tues. 5/7 Interpret the relationships between organisms and their physical environment. Review how energy flows through living systems through the processes of photosynthesis and respiration.

In: pg.62 Look at your food web from last class. Would the food web be more affected if the coyotes and raptors disappeared or if the plants disappeared? Explain your answer.

Pg.63 - Answer the questions on the “How Bio-magnification Works” sheet

Pg.65 – Owl Pellet Lab Glue in Bio-Magnification of Poisons in Owls Data sheet Pg.64 – Lab Conclusion: Write the following conclusion question and answer using your data in at least 3 or more sentences Is the percent of voles in the barn owl’s diet high enough to poison the barn owl?

You are a wildlife biologist with the State Department of Wildlife, and it is your job to monitor and manage wild raptor populations, including owl populations, within the boundaries of a large state park. Recently, to control vole populations, (small rodents) poison baits attractive only to voles have been placed around the park. The poison used can accumulate (bio-magnification) in the rodent’s bodies and be passed onto the predators that feed upon them. Since owls in the park eat voles, you are worried that the poisons may harm the owls. To find out what the common owl’s diet consists of you have collected pellets from around the park. Research has shown that a normal, adult owl’s diet must be at least 50% voles to harm it. Your job is to analyze the samples and decide if the owls are in danger from the poisons.

Homework Finish lab analysis questions

Out – pg.62 Explain how the bio-magnification of a pesticide could occur in a Barn Owl population. 3 or more sentences!!!

Wed. 5/8 & Thur 5/9 ***2-day assignment***

In: pg.66 How does the water cycle work? Elements and compounds can cycle thru the environment. One example of this is the water cycle. How does the water cycle work? 3+ sentences

Set up Cornell Notes - Pg.67 Title: Biogeochemical Cycles

Matter/Nutrient Cycling Biogeochemical cycles = Nutrients are recycled as they pass through the living and nonliving parts of the ecosystem. Water Cycle Nitrogen Cycle Carbon Cycle Phosphorus Cycle

Water (H20): Forms: solid (ice), liquid, gas (water vapor) required for all life, living things are mostly made of water.

Water cycle

Nitrogen (N): Forms: Nitrates, ammonia, ammonium, atmospheric nitrogen Needed by living things to make proteins.

Nitrogen cycle

Phosphorus (P): Forms: phosphates Used in growth & development of producers (plants). Used to make biomolecules (like DNA) in consumers.

Phosphorus cycle

Nitrogen/phosphorus and Nutrient Enrichment Phosphates are mined for fertilizer production. Nitrates are added to commercial fertilizers. When excess phosphates and nitrates enter lakes and ponds, eutrophication occurs. The producers in the aquatic ecosystem get ”fertilized” and choke out all of the other living things. Eutrophication is over-enrichment of an aquatic ecosystem. Pollutants which undergo biological magnification as they concentrate moving through the food chain include DDT and PCBs, among others.

Carbon (C): Forms: carbon dioxide, carbon-containing biomolecules Used for growth and energy.

Carbon cycle

Carbon Dioxide and Global Warming The amount of carbon that moves from one part of the environment to another can be altered (changed) by human activities. Atmospheric carbon dioxide has risen due to burning of fossil fuels and forests. Besides CO2, nitrous oxide and methane are also greenhouse gases. The burning of fossil fuels is the primary causes of greenhouse gases increasing in the atmosphere. Other sources of greenhouse gases include methane from feed yards, and other gases from industry.

Similar to the panes of a greenhouse, these greenhouse gases trap heat energy at the earth’s surface. Buildup of more of these “greenhouse gases” could lead to more global warming. The effects of global warming include a rise in sea level, affecting coastal cities, and a change in global climate patterns.

Earth’s radiation balances The contribution of greenhouse gases (far right) to the earth’s surface causes global warming.

Finish Cornell Notes 3 questions 3-sentence summary

Pg.69 - Biogeochemical Cycles 4-door book Pg.68-Analysis Questions: What C compound is found in the atmosphere? What organisms remove C from the atmosphere? What organisms release C into the atmosphere? Why can’t plants and animals use the Nitrogen gas from the atmosphere? What organisms convert N2 from the atmosphere into usable nitrates? What organisms add N2 to the atmosphere? P is not found in the atmosphere. Where is it “stored” in the environment? What organisms take up P from the environment? Pg.69 - Biogeochemical Cycles 4-door book Draw a labeled diagram of the cycles Color diagrams  at least 3 colors! Write a 3+ sentence summary of the cycle. Water cycle Carbon cycle Nitrogen cycle Phosphorus cycle—not in text—get from class!!

Phosphorus cycle

Honors: Day 2 - IN Assignment Pg.67  glue as flip on top of notes Fertilizer: Friend or Foe?/ The Phosphorus Cycle.

Homework ***Both are DUE FRIDAY!!!!!!! Biogeochemical Cycles 4-door Book. Analysis questions ***Both are DUE FRIDAY!!!!!!!

Out Are humans part of the biogeochemical cycles? How do we alter (change) the cycles? (Give a specific example and explain your answer)

Fri 5/10 Recognize that theories models and assumptions of all fields of science evolve through time with the incorporation of new evidence gained through on-going investigations and collaborative discussions.

In: Pg.70 List 3 things that you know or learned about global warming? Watch the Movie Clip: Global Warming (7 minutes) List 3 things that you know or learned about global warming?

Carbon cycle

Carbon Dioxide and Global Warming The amount of carbon that moves from one compartment of the environment to another can be altered by human activities. Atmospheric carbon dioxide has risen due to burning of fossil fuels and forests. Besides CO2, nitrous oxide and methane are also greenhouse gases. The burning of fossil fuels is the primary causes of greenhouse gases increasing in the atmosphere. Other sources of greenhouse gases include methane from feed yards, and other gases from industry.

Similar to the panes of a greenhouse, these gases trap heat energy at the earth’s surface. Buildup of more of these “greenhouse gases” could lead to more global warming. The effects of global warming could include a rise in sea level, affecting coastal cities, and a change in global climate patterns.

Earth’s radiation balances The contribution of greenhouse gases (far right) to the earth’s surface causes global warming.

Pg.71 - Climate Fever: How to Halt the Heat Read the article and answer the analysis questions “Climate Fever, How to Halt the Heat” What is happening to polar bears along Canada’s Hudson Bay? What is happening to the ice around the world? Why? What are 2 theories scientists use to explain global warming? What are greenhouse gases? What is the major source of carbon dioxide in the atmosphere? What are some ways to remove carbon dioxide from the atmosphere? How does methane compare to carbon dioxide as a greenhouse gas? How does the US contribute to the increase in greenhouse gases? “What Causes Global Warming?” Which greenhouse gas is most common in the atmosphere? What are the sources of CFC’s? How does soot contribute to global warming? Which greenhouse gases did not appear in the atmosphere in significant quantities until the 1900’s? Which greenhouse gas is the biggest “heat trapper”? What kind of human activities seem to create the most greenhouse gases?

Homework Finish analysis questions

Out – pg.70 What can you do to help stop global warming? (give 3 ideas) 1. 2. 3.

Mon 5/13 Interpret the relationships between organisms and their physical environment.