PPT-The Nitrogen Cycle Nitrogen, like water, is recycled through ecosystems over and over....

Take a deep breath 78 of the air you just breathed in is made up of nitrogen gas Your body requires nitrogen to build proteins amino acids and DNA but your body cannot . 20 1027200 1048830 1054860 1081860 1126920 1137390 1180200 1192470 1229340 1282710 O7 826440 864840 882600 896730 922290 947580 976770 1005900 1035120 1126920 1204380 O6 612540 672960 717120 717120 719850 750720 754770 754770 797670 873510 918030 O5 Geochemical Cycles continued. Objectives: . Describe the process of cycling phosphorus throughout environment. . Describe the role that fertilizer plays in both the nitrogen and phosphorus cycle. . What is phosphorus?. RAMI ITANI. What Matter Is Being Cycled. The matter that is being cycled is Nitrogen. Nitrogen is one of the main building blocks of life. Every living things need nitrogen to either breath or to grow. Nitrogen can be found almost everywhere.For example it can be found in the air,in soil, in water and even in volcanic gasses. Nitrogen is one of the most important elements on earth. Unit 4 . – Nutrient Cycles in marine ecosystems. Magnesium:. Used to . make chlorophyll. Ca Cycle:. Ca present in ocean as Ca. 2+ . (calcium ions). From weathering/erosion of . rocks. ; . brought to ocean from runoff of rivers. “The little bit I use or pollute will not matter”. . So with few users it is not a big problem, however; will an ever increasing human population, resources can be exhausted. . Sustainability. CHAPTER. Too Much of a Good Thing?. Elephant populations in southern Africa declined sharply due to hunting but have made overwhelming comebacks within nature reserves and parks.. Some worry that elephant overpopulation is causing a decline in local biodiversity and damage to farms and infrastructure.. What does the 10% Law?. Compare food chains to food webs.. What are the three types of pyramids we discussed yesterday? What information can you get from each?. Nutrient Cycles and Human Impact. What is Nutrient Cycling?. Chapter 3 (Miller and . Spoolman. , 2010). Core Case Study: Tropical Rain Forests Are Disappearing. Cover about 2% of the earth’s land surface. Contain about 50% of the world’s known plant and animal species. Aquatic ecosystems are primarily determined by the ecosystem’s . salinity. . Salinity refers to the dissolved salt content of the water.. Aquatic ecosystems are divided into freshwater and marine ecosystems.. Some of the chemical building blocks of life, called . macronutrients. , are required by organisms in large quantities. Water . –. Carbon. Hydrogen . –. Oxygen. Nitrogen . –. Phosphorous. Ocean Zones & Ecosystems. Freshwater Zones & Ecosystems. Related Ecology. Benthic Division. 6 Areas. . 1. Supralittoral zone. (supra= upper, litus=shore). . Water splashes but does not stay submerged. Cycling of Matter in Ecosystems Recycling Matter All life on Earth requires water and nutrients These particles of matter don ’ t remain in your body forever Every part of every cell in your body is replaced over time THE NITROGEN CYCLE NITROGEN NITROGEN QUICK FACTS We use nitrogen to build proteins We use it to build each piece of DNA 7 N 14.01 Remember, C arbon = energy and bonds It’s the #1 gas in the atmosphere – 78% Section 3: . Aquatic Ecosystems. K. What I Know. W. What I Want to Find Out. L. What I Learned. Essential Questions. What are the major abiotic factors that determine the aquatic ecosystems?. What are transitional aquatic ecosystems and why are they important?.