PPT-Communities, Biomes and Ecosystems

8192013 EQ How do organisms interact with their environment Chapter 21 Ecology Study of interactions between organisms and their surroundings Section 31 Figure 32 Ecological Levels of Organization. Tundra. Swamps. Ocean/Shore Line. Desert. Mountains. S:\FACULTY\6th Science\Introduction to ecosystems.asf. Ecosystem:. All of the living and non-living things that interact in an area.. G:\SECONDARY SCIENCE\Middle School\6th Grade\Ecosystems1\Ecosystems.asf. Freshwater Biomes. Freshwater is less than 3% of the Hydrosphere. . 90% of the freshwater is locked beneath the Earth’s surface. . Water is cycled through evaporation and transpiration from the atmosphere to the land and back again. . Chapter 10. Objectives. Describe the factors that characterize the various types of aquatic biomes.. 10.1 Aquatic Biomes. Aquatic Biomes. What type of biomes have we learned about so far?. Rainforest, savannah, desert, . Designed by Christopher Becker,. Joeie. Puckett, Michael . Ruthenberg. ,. and . Satura. Thomas. A . Webquest. for 4. th. Grade. Introduction. Biomes are defined as "the world's major communities, classified according to the predominant vegetation and characterized by adaptations of organisms to that particular environment" (. . Table of Contents. Section 3: . Aquatic Ecosystems. Section 1: . How Ecosystems Change. Section 2: . Biomes. Chapter: Ecosystems. . Table of Contents. Section 1: . How Ecosystems Change. Mosses from my back yard. 4.2 pgs. 94 - 100. Biomes. A large geographical region with a specific range of temperatures and precipitation, and the organisms that are adapted to those conditions of temperature and precipitation. Organisms and their Environments. Units 12&14. 1. Ecosystems have living and non-living components. 14.1. 2. Ecosystem. Living organisms.. Non-Living Environment. 3. 4. 5. Communities. The . biotic environment . Overview: Discovering Ecology. Ecology. is the scientific study of the interactions between organisms and the environment. These interactions determine distribution of organisms and their abundance. Explain how biomes are characterized. Describe how net primary production varies among biomes. Explain how organisms are adapted to the conditions of their biomes. Describe the criteria ecologist use to classify aquatic systems. 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.. Organisms and their Environments. Unit . 2. 1. Ecosystems have living and non-living components. 2. Ecosystem. Living organisms.. Non-Living Environment. 3. 4. 5. Communities. The . biotic environment . 34.1 Ecologists study how organisms interact with their environment at several levels. Ecology. is the scientific study of the _______________ of organisms and the environment.. Organisms can potentially be affected by many different variables, grouped into two major types.. Santa Monica Mountains National Recreation Area. Photo: Robert Taylor. Biomes of the World. Biomes are determined by the . climate. (temperature and precipitation). That, in turn, influences what . biota. Biomagnification. is the process by which matter becomes concentrated in living things in a food chain.. Moving up the Food Chain . DDT provides one example of the effects of . biomagnification. in an ecosystem. DDT is a chemical that was widely used to kill plant–eating insects. Some chemicals break down over time, but DDT does not. DDT collected in water and soil, was absorbed by living things, and moved up the food chain. The diagram shows how DDT became magnified in a wetland ecosystem. It entered through tiny organisms called zooplankton, which absorbed DDT from the water..