Presentation on theme: "The Biosphere – Chapter 3"— Presentation transcript:
1 The Biosphere – Chapter 3 How are nutrients important in living systems. Explain how matter moves among living and nonliving parts of an ecosystem.2. Explain how energy flows through living systems and how efficient is the transfer of energy among organisms.3. Explain the different levels of organization ecologists studyPeriod 1: Period 7Quiz: Thur Oct 2nd Quiz: Mon Oct 6thLab: Thur Oct 2nd (Book Pg 81) Lab: Mon Oct 6th (Book Pg 81)Test: Mon Oct 6th Test: Wed Oct 8thPeriod 4Quiz: Fri Oct 3rdLab: Fri Oct 3rd (Book Pg 81)Test: Tues Oct 7th
2 What is Ecology?The interactions of organisms with one another and with their physical surroundings
3 That part of the Earth in which life exists BiosphereThat part of the Earth in which life exists
4 Levels of organization Species: group of organisms that Breed and produce fertile offspring
5 PopulationsKey:Group of individuals that belong to the same species and live in the same area.
6 Organisms living together in an ecosystem CommunityOrganisms living together in an ecosystem
7 Ecosystem Physical features Abiotic factors = physical features water sunlight, soil type rocks, temp.Biotic Factors = living organismsshark, fish, coral, tube worms, arthropods
8 BiomeKey:Group of ecosystems that have the same climate and similar dominant communities.
9 Tundra Locations: Northern North America, Asia and Europe Characteristics:Treeless biomeCovered in mosses, lichens and grassesAnimals migrate in summer to feed on plantsCarnivores follow the food migratingPermafrost = Permanently frozen subsoil
12 Ecological Methods Keys: - Observing * Collecting data to make an educated guess (hypothesis)- Experimenting* testing changes in natural ecosystems- Modeling* models help predict what could happen ecologically over a long period of time. (Global Warming)
13 Energy Flow Keys: Main source of energy? The Sun Autotrophs Energy from the environment to fuel the production of simple into complex organic compoundsProducers?Make their own food
14 Energy From the Sun Keys: Photosynthesis Use solar energy to convert CO2 and H2O into O2 and C6H1206
15 Life Without Light Keys: Chemosynthesis Use chemical energy to convert CO2 and H2O into chemical compound and C6H1206Life Without Light
16 Consumers Keys: Acquire energy from other organisms Heterotrophs Five types:Herbivores: Cows / DeerPlant eatersCarnivores: Snakes / owlsAnimal eatersOmnivores: Bears / crowsBest of Both worldsDetritivores: Mites / earthwormsPlant and animal remainsDecomposers: Bacteria / fungiBreak down organic Matter
17 Food ChainKeys:Transfer of energy by eating and being eaten
18 The Food WebKeys:Feeding Relationships among organisms
19 Trophic Levels Keys: Each step of the food chain or food Web. Each consumer depends on the trophic level below for energy.
20 Ecological Pyramids Keys: Diagram in your notes the following Ecological Pyramids.Three TypesEnergy PyramidBiomass PyramidPyramid of NumbersBe able to define each pyramidRelate the pyramids to the different trophic levels.
21 Nutrient Cycles Keys: NUTRIENTS Substances organisms need to sustain life.Build tissues and carry our life functionsBiogeochemical cyclesPassed between organisms and the environment
25 Class Assignment Keys: Finished by the end of Class. Assignment: Worth 10 Points in HW category.Each notebook will be check before you leave.Assignment:Develop a flow chart that traces the:Carbon CycleNitrogen CycleWater Cycle