Soil biology

Rating:

No votes yet

Tags:

Water Cycle: The water cycle describes the existence and movement of water on, in, and above the Earth. Earth's water is always in movement and is always changing states, from liquid to vapor to ice and back again. The water cycle has been working for billions of years and all life on Earth depends on it continuing to work; the Earth would be a pretty stale place without it. The water cycle has no starting point. But once the water is evaporated from its source (seas, oceans, ponds, lakes, etc.), it is taken to the atmosphere by vapor current. When the vapor is in the atmosphere the water condenses into the cloud and it falls back to the earth in the form of cloud particles. This is known as precipitation. Nitrogen Cycle:

Campbell Biology Chapter 37 Outline

Subject:

Rating:

No votes yet

Tags:

Copyright ? 2005 Pearson Education, Inc. publishing as Benjamin Cummings Chapter 37 Plant Nutrition Copyright ? 2005 Pearson Education, Inc. publishing as Benjamin Cummings Nutritional requirements of plants ? Plants derive most of their organic mass from the CO2 of air ? also depend on soil nutrients such as water and minerals ? classic experiments by Jean-Baptiste van Helmont & Stephen Hales ? nitrogen acquired mainly as nitrate ions (NO3?) Copyright ? 2005 Pearson Education, Inc. publishing as Benjamin Cummings Essential Elements ? more than 50 chemical elements found in inorganic substances in plants ? not all of these are essential ? chemical element is considered essential if it is required for a plant to complete a life cycle

Living in the Environment 16th Ed. : Ch.3 Key Terms

Subject:

Rating:

No votes yet

Tags:

Chapter 3 abiotic Two types of components make up the biosphere and its ecosystems: One type, called abiotic, consists of nonliving components such as water, air, nutrients, rocks, heat, and solar energy. aerobic respiration Producers, consumers, and decomposers use the chemical energy stored in glucose and other organic compounds to fuel their life processes. In most cells this energy is released by aerobic respiration, which uses oxygen to convert glucose (or other organic nutrient molecules) back into carbon dioxide and water. anaerobic respiration, or fermentation Some decomposers get the energy they need by breaking down glucose (or other organic compounds) in the?absence?of oxygen. This form of cellular respiration is called anaerobic respiration, or fermentation.

Principles of Ecology

Subject:

Rating:

No votes yet

Tags:

Principles of Ecology Organisms and Their Environment What is Ecology? Ecology: the study of interactions that take place between organisms and their environment The Biosphere Biosphere: the part of Earth that supports life The biosphere includes the top portion of Earth?s crust, all the waters that cover Earth?s surface, and the atmosphere that surrounds Earth. The biosphere is made up of different environments that are home to different kinds of organisms. Ecosystem: all the living organisms living in an area and the nonliving features of their environment Biotic factors: living organisms in an ecosystem (ex. bison, grass, birds, insects) Abiotic factors: nonliving features of an ecosystem (ex. water, temperature, sunlight, soil, air) Levels of Organization

Bio112 April 29th

Subject:

Rating:

No votes yet

Tags:

Bio 112

Bio 112 April 29th, 2013 More on Ecosystems Food webs -Is a branching food chain with complex trophic interactions -Including decomposes (detritevors) Energy Flow through Ecosystems -from one trophic level to the next. Primary production - are photoautotrophs, capturing energy from the sun. Energy flows from these guys through all other levels. Of course some energy will be lost at each level. -light energy converted to chemical energy by autorophs during a given time period. -Gross primary production is the total primary production. -Net primary production is GPP minus energy used by producers (respiration)-only this is available to consumers. NPP is more important then GPP. Secondary production

Chapter 3 section 3 Powerpoint

Subject:

Rating:

No votes yet

Tags:

Lesson Overview 3.3 Energy Flow in Ecosystems Lesson Overview Energy Flow in Ecosystems THINK ABOUT IT What happens to energy stored in body tissues when one organism eats another? Energy moves from the ?eaten? to the ?eater.? Where it goes from there depends on who eats whom! Lesson Overview Energy Flow in Ecosystems Food Chains and Food Webs How does energy flow through ecosystems? Energy flows through an ecosystem in a one-way stream, from primary producers to various consumers. Lesson Overview Energy Flow in Ecosystems Food Chains A food chain is a series of steps in which organisms transfer energy by eating and being eaten. Food chains can vary in length. An example from the Everglades is shown. Lesson Overview Energy Flow in Ecosystems Food Chains

APES Midterm

Subject:

Rating:

No votes yet

Tags:

earth

Planetary atmospheres

Part A Directions: Each set of lettered choices below refers to the numbered questions or statements immediately following it. Select the one lettered choice that best answers each questions or best fits each statement and then fill in the corresponding oval on the answer sheet. A choice may be used one, more than once, or not at all in each set. ? Questions 1 and 2 refer to the following concepts relating to systems? Linear growth Feedback Loop Exponential growth Equilibrium Growth rate in which the amount doubles in a fixed unit of time. Change that tends to stabilize a system Questions 3-5 refer to the following biogeochemical cycles Carbon cycle Nitrogen cycle Hydrologic cycle Geological cycle Biogeochemical cycle

APES CHAPTER 4

Subject:

Rating:

No votes yet

Tags:

Soil

Exam 4 review sheet Chapter 3 Hydro cycle Solar energy heats Earth, and causes evaporation Evaporated water condenses into clouds Water returns to Earth as precipitation Precipitation falling on land is taken up by plants, runs off along the land surface, or percolates into the soil and enters the groundwater Carbon cycle Carbon is the most important element in living organisms makes up 20 percent of total body weight. Produces convert CO2 into sugars Sugars are converted back into CO2 Some carbon can be buried Human extraction of fossil fuels brings carbon to Earth?s surface, where it can be combusted C02 in the atmosphere and CO2 dissolved in water are constantly exchanged Combustion converts fossil fuels and plant material into CO2 Nitrogen cycle

APES CHAPTER 4

Subject:

Rating:

No votes yet

Tags:

Soil

Exam 4 review sheet Chapter 3 Hydro cycle Solar energy heats Earth, and causes evaporation Evaporated water condenses into clouds Water returns to Earth as precipitation Precipitation falling on land is taken up by plants, runs off along the land surface, or percolates into the soil and enters the groundwater Carbon cycle Carbon is the most important element in living organisms makes up 20 percent of total body weight. Produces convert CO2 into sugars Sugars are converted back into CO2 Some carbon can be buried Human extraction of fossil fuels brings carbon to Earth?s surface, where it can be combusted C02 in the atmosphere and CO2 dissolved in water are constantly exchanged Combustion converts fossil fuels and plant material into CO2 Nitrogen cycle

Fungi Problem Set

Subject:

Rating:

No votes yet

Tags: