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PSSA Vocab part 4

TermDefinition
decomposer an organism, often microscopic in size, that obtains nutrients by consuming dead organic matter, thereby 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 process, 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., lake, stream, or 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 has 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, because of its quantity or concentration, its physical, chemical, and infectious characteristics, may cause or a substantial present or potential hazard to health or the environment when improperly treated, stored, or disposed of
biological diversity the variety and complexity of species present and interacting in an ecosystem and the relative abundance of each
consumer those organisms that obtain energy by feeding on other organisms and their remains. A person buying goods or services for personal needs or to use in the production of other goods for resale
point source pollution 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 or protons (atomic number) as another atom but a different number or 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
Created by: meganmiley