Environtmental Science

• Environment


  refers to the sum of all external factors acting on an organism or community of organisms.
• Ecology


  is derived from the Greek word oikos, meaning "house or a place to live in."
• Ecosystem


  refers to the living component, the environment and the interaction between and among them.
• Environmental Science


  is an interdisciplinary field that covers both the physical sciences physics, chemistry, biology, geology, geography, resource technology, and engineering, and social sciences resource conservation and management demography, economics, politics, and ethics.
• Environmental Education


  is a global concern about which the public must be informed.
• Interdependence/Interrelatedness


  Both the biotic and abiotic components are equally important in the ecosystem because the absence of one affects the functions and existence of the others and of the whole ecosystem.
• Diversity and Stability


  It is believed that a diverse community is a stable community.
• Change


  It has been said that the only constant thing on this Earth is change, change is basic to nature.
• Balance of Nature


  Ecosystems are capable of self-maintenance and self-regulation. Predation kills off some members of the population and is a good regulator of population density.
• Finiteness of resources


  means that there are limitations and boundaries to utilization.
• Pollution


  is the undesirable accumulation of substances resulting in diminished quality and utility of a resource.
• stewardship


  is our major responsibility to pass on these resources in their sustainable state
• Sustainability


  is equally concerned with socioeconomic development (human well-being) and environmental quality.
• atom 


  is a particle of matter that uniquely defines a chemical element
• molecule


  is a group of two or more atoms held together by attractive forces known as chemical bonds; depending on context, the term may or may not include ions which satisfy this criterion.
• Organelles


  are specialized structures that perform various jobs inside cells.
• Cells


  They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions.
• connective tissue, epithelial tissue, muscle tissue, and nervous tissue


  There are 4 basic types of tissue.
• Organs


  "organum" meaning an instrument or tool, is a collection of tissues that structurally form a functional unit specialized to perform a particular function.
• Organ System


  is a biological system consisting of a group of organs that work together to perform one or more functions. Each organ has a specialized role in a plant or animal body, and is made up of distinct tissues.
• Organism


  refers to a living thing that has an organized structure, can react to stimuli, reproduce, grow, adapt, and maintain homeostasis.
• Population


  The group of individuals belonging to one species and is found together in a defined area at a certain is called population.
• Biosphere


  This is where all life on Earth lives.
• Biome


  A large community of flora and fauna occupying a major habitat.
• Ecosystem


  A biological community of interaction organism and their physical environment.
• Community 


  All the organisms living in a particular area or place
• Population


  A particular section, group, or type of people or animals living in an area or region.
• Individual


  A lone organism.
• Ecology


  look at how organisms are related to one another and how they are related to the environment in which they live the ecosystem.
• Ecosystem


  includes all living organisms in a defined area and their nonliving environment
• Biotic factors


  living
• Abiotic factors


  nonliving
• hierarchy


  is a system of things ranked one above the other
• organism


  any living thing – a plant, a germ, a human, a fish, a bird, etc.
• species


  a distinct sort or kind of organism.
• population


  is made up of all the individuals of a given species in a specific area or region at a certain time.
• Community


  includes all organisms in a given area
• producers, consumers, and decomposers.


  All living things are divided into three main groups
• producer


  is a living thing that makes it’s own food
• Consumers


  means “to eat”.