Earth's History/Evolution
The actual age of a rock or fossil or how long ago an event occurred
Absolute Age
An outbreak in a regional area
Epidemic
The number of protons and element has in its nucleus
Atomic Number
Pollution that comes from many places or a source that is not easily identified
Non Point-Source Pollution
Living parts of the ecosystem
Biotic Factors
A scientific law that states that in undisturbed sedimentary rock layers, older layers of rock lie beneath younger rock layers
Law of Superposition
A particle that consists of a nucleic acid and a protein shell that requires a living cell in order to reproduce
Virus
An element that has some properties of a metal and some properties of a nonmetal
Metalloid
The amount of sediment in water that reduces the clarity
Turbidity
An organism that makes its own food
Autotroph (Also will accept Producer)
A 3D fossil; a mold fossil that has been filled in
Cast Fossil
Typically a food item that has DNA that has been modified
GMO
A type of matter that forms when two or more elements combine chemically
Compound
The movement of colder, nutrient-rich waters from the deep ocean into shallow seas
Upwelling
Interactions between two different organisms in which one organism benefits and one is unaffected
Commensalism
A trait or structure that improves an organism's chance for survival and reproduction
Adaptation
An organism that transmits a disease from one organism to another without contracting the illness itself
Vector
Outermost electrons
Valence Electrons
Organisms that are used to assess the health of a water system
Bioindicators
Levels within an ecosystem that share the same function in the food chain
Trophic Levels
Structures with the same relative structure but different uses in 2 species; evidence of a common ancestor
Homologous Structures
Use of a living thing to break down a polluted sit
Bioremediation
A term that tells how many total molecules of a chemical in a chemical equation
Coefficient
An area of land where precipitation collects and then drains into a single collection place, often a lake or ocean
Watershed
The resource that restricts the size of a population
Limiting Factors