2004 Plano ISD, Plano, TX Introducing 2004 Plano ISD, Plano, TX Warm-up 2/13/12 Finish filling in your Biome Chart from Friday Essential Question What is an Ecosystem and How does energy flow within an Ecosystem? 2004 Plano ISD, Plano, TX Unit Essential Question: How do organisms interact with each other the abiotic factors within the area that they live? In which direction does energy flow within the system? What happens when the flow of energy is interrupted? What happens when non-native species are introduced into an area? Lesson Essential Questions: 1. What is an ecosystem? 2. Where does the energy come from within an ecosystem? 3. How does the energy flow within an ecosystem? Lesson Essential Questions: 1. In what ways can species interact with each other? 2. What is symbiosis? Define the four major types. Lesson Essential Questions: 1. What happens when chemicals naturally leach into systems? 2. What happens when humans introduce chemicals into the environment? Lesson Essential Questions: 1. What happens when an ecosystem is affect by fire or other major geologic/weath er event? 2. How might the ecosystem change? 3. What happens when humans introduce a new species into an area? 2004 Plano ISD, Plano, TX Ecosystem includes all abiotic and biotic factors in one particular environment Biotic Factors the living parts of an ecosystem Abiotic Factors the nonliving parts of an ecosystem 2004 Plano ISD, Plano, TX Biotic Factors Bio bio(s), bio(t) (G) root life include plants, animals, fungi, microorganisms biology biostatistics biography biotechnology biosphere biomechanics biotic biofeedback 2004 Plano ISD, Plano, TX Examples of Biotic Factors 2004 Plano ISD, Plano, TX Abiotic Factors include air, water, soil, temperature, wind, source of energy (usually sun) A A a, an(G) prefix not, without atoxic amoral abiotic amusia 2004 Plano ISD, Plano, TX Examples of Abiotic Factors 2004 Plano ISD, Plano, TX Examples of Ecosystems Arizona Desert Mountains in Colorado Coral Reef in Belize 2004 Plano ISD, Plano, TX do not necessarily have clear boundaries due to biotic and abiotic changes Ecosystems BioticBioticAbioticAbiotic migration, seed dispersal flood, erosion, drought can change daily as things move from one ecosystem to another 2004 Plano ISD, Plano, TX interact with each other in complex ways Biotic Factors also interact with abiotic factors in the ecosystem parasitism mutualism competition dependent upon water, minerals, temperature, light such as 2004 Plano ISD, Plano, TX a major regional or global biotic community, a super ecosystem, defined chiefly by the dominant forms of plant life and the prevailing climate Biome 2004 Plano ISD, Plano, TX desertdesert grasslandgrassland tropical rain forest deciduous forest coniferous forest tundratundra Major Biomes of the World oceanocean 2004 Plano ISD, Plano, TX Levels of Organization smallest unit of living things group of similar cells organized to work together group of different kinds of tissues working together group of organs working together one individual living thing all organisms of the same kind living in one area all interacting populations in an ecosystem all living and nonliving things interacting within a certain area large region with typical plants and animals that includes several ecosystems cell 2004 Plano ISD, Plano, TX Food Chains Producer- uses the sun to make food Consumer- Consumes other living things for energy Predator- Hunts other animals Prey- is hunted Scavenger- feeds on dead animals Decomposer- mainly bacteria that speed up the decomposition of everything 2004 Plano ISD, Plano, TX How do things interact?? Food Chains Tertiary Consumer Secondary Consumer Primary Consumer Producer Trophic Levels 2004 Plano ISD, Plano, TX Food Web- ALL of the individual food chains in an ecosystem 2004 Plano ISD, Plano, TX How does Energy in a System Flow? Energy comes from the sun 10% of the energy moves on, the rest is used for metabolic functions 100% 10% 1%.1%.01% 2004 Plano ISD, Plano, TX Work with your group to construct your own food Chain What comes first? Think what would eat that? Which trophic Level comes next? Which animal would fit best? When done Have Mrs. Barkus check. After you have been approved try making a food web. 2004 Plano ISD, Plano, TX Compare a Food Web and Food Chain Food Chain Food Web Same