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10-12 PSSA Vocab

Study! Due (3-23)

TermDefinition
Decomposer An organism, often microscopic in size, that obtains nutrients by consuming dead organic matter, there by making nutrients accessible to other organisms; examples of decomposers include fungi, scavengers, rodents and other animals.
Engineering The application of scientific, physical, mechanical and mathematical principles to design processes, products and structures that improve the quality of life.
Allele Any of a set of possible forms of a gene.
Ergonomical Of or relating to the design of equipment or devices to fit the human body's control, position, movement and environment.
Enzyme A protein that increases the rate of a chemical reaction without being changed by the reaction; an organic catalyst.
Nonpoint Source Pollution Contamination that originates from many locations that all discharge into a location (e.g., a lake, stream, land area).
Embryology The branch of biology dealing with the development of living things from fertilized egg to its developed state.
Carbon Chemistry The science of the composition, structure, properties and reactions of carbon based matter, especially of atomic and molecular systems; sometimes referred to as organic chemistry.
Biochemical Conversion The changing of organic matter into other chemical forms.
Scale Relates concepts and ideas to one another by some measurement (e.g., quantitative, numeral, abstract, ideological); provides a measure of size and/or incremental change.
Biomass Conversion The changing of organic matter that has been produced by photosynthesis into useful liquid, gas or fuel.
Theory Of Evolution A theory that the various types of animals and plants have their origin in other preexisting types and that the distinguishable differences are due to modification in successive generations.
Incinerating Burning to ashes; reducing to ashes.
Hazardous Waste A solid that may cause or pose a substantial present or potential hazard to human health or the environment when improperly treated, stored, transported or disposed of, or otherwise managed.
Biological Diversity The variety and complexity of species present and interacting in an ecosystem and the relative abundance of each.
Consumer 1) Those organisms that obtain energy by feeding on other organisms and their remains. 2) A person buying goods or services for personal needs or to use in the production of other goods for resale.
Point Source Solution Pollutants discharged from a single identifiable location (e.g., pipes, ditches, channels, sewers, tunnels, containers of various types).
Nova A variable star that suddenly increases in brightness to several times its normal magnitude and returns to its original appearance in a few weeks to several months or years.
Science Search for understanding the natural world using inquiry and experimentation.
Mitosis The sequential differentiation and segregation of replicated chromosomes in a cell's nucleus that precedes complete cell division.
Radioactive Isotope An atom that gives off nuclear radiation and has the same number of protons (atomic number) as another atom but a different number of neutrons.
Risk Management A strategy developed to reduce or control the chance of harm or loss to one's health or life; the process of identifying, evaluating, selecting and implementing actions to reduce risk to human health and to ecosystems.
Waste Stream The flow of (waste) materials from generation, collection and separation to disposal.
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