PPT-Energy Flow Pyramids and Trophic Levels

TROPHIC LEVELS An organisms trophic feeding level is determined by the organisms source of energy There are 3 main trophic levels in a food web Autotrophs Heterotrophs Saprotrophs 1 AUTOTROPHS. Assessment Statements. Define species, habitat, population, community, ecosystem, and ecology. Distinguish between . autotroph. and . heterotroph. Ditinguish. between consumer, . detritivores. and . Chapter 13, Section 13.4. This is called an energy pyramid. It shows how energy is lost moving from the producers to each subsequent, higher, trophic level.. Objectives. To describe the structure of a food chain.. Chronology of pyramids. Old Kingdom Egyptians . began to build pyramids to house their dead pharaohs . There are still 35 pyramids standing near the Nile, and 138 pyramid sites have been discovered. Chronology of pyramids . trophic. levels. Energy and Ecosystems . Learning Objectives. All students should be able to calculate:. The percentage of energy transferred from one . trophic. level to the next.. Percentage efficiency of energy transfers .. Chapter 13, Section 13.4. This is called an energy pyramid. It shows how energy is lost moving from the producers to each subsequent, higher, trophic level.. Objectives. To describe the structure of a food chain.. Energy Transfer. Energy transfers from one organism to another when they are consumed and metabolized.. Energy can be followed based on how organism obtain energy.. Trophic levels . – the position of an organism in a sequence of energy transfer. Energy Transfer. Energy transfers from one organism to another when they are consumed and metabolized.. Energy can be followed based on how organism obtain energy.. Trophic levels . – the position of an organism in a sequence of energy transfer. By Claire & Sulin.. Main facts. For over 3800 years The Great Pyramid Of Giza was the tallest man made structure in the world.. Mrs. Joelle R. King. Science Teacher. Food Chains. Food chains. use pictures or words and arrows to show the movement of energy through the trophic levels of organisms.. The . trophic level. of an organism indicates the position that the organism occupies in the food chain.. In no particular order:. Steve Nelson, BYU Dept. of Geological Sciences. Sam . Rushforth. , . Rushforth. Phycology. The question:. What was the trophic state of Utah Lake prior to European settlement and how has it changed as development proceeded?. using various models including . food chains. , food webs, and ecological pyramids. Lesson frame. :. We will analyze the flow of energy and matter through a food chain.. I will complete the Looney Labels Food Chain activity. Ecosystem. A community and its abiotic environment. The sun is the main source of energy for most ecosystems. All life that you see on Earth’s surface relies either directly or indirectly on sunlight. Konstantinos G. Papadopoulos, . Efthymios. S. . Lytras. , Stylianos A. . Samios. , Marina N. . Despotidou. , . Georgios E. . Katsouras. , Alexandros D. . Dosis. , Nikos D. . Tsalas. 2. Definition of Trophic State. Dr.Seema Keswani. Assistant Prof. & Head.. Dept. of Zoology. Trophic Levels. The primary source of energy for an ecosystem is the sun. . Photosynthetic organisms, such as plants and algae, change light energy from the sun into energy that they can use to grow. .