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Ch.7 Evolution Vocab

QuestionAnswer
A characteristic that improves an individual's ability to survive and reproduce in a particular environment Adaptation
The trace remains of an organism that lived long ago, most commonly preserved in sedimentary rock Fossil
A group of organisms that are closely related and can mate to produce fertile offspring Species
A historical sequence of life indicated by fossils found in layers of the Earth's crust Fossil Record
The process in which inherited characteristics within a population change over generations such that new species sometimes arise Evolution
The process by which individuals that are better adapted to their environment survive and reproduce more successfully than less adapted individuals do; a theory to explain the mechanism of evolution Natural Selection
The period of time between the birth of one generation and the birth of the next generation Generation Time
The formation of a new species as a result of evolution Speciation
The fahter of evolution; came up with the theory of natural selection Charles Darwin
A difference in structure or character from others of the same species or group Variation
How something lives, eats, and survives in its ecosystem Niche
Changes in the genetic makeup of an organism - the changes can be helpful or harmful and can be an important source of new traits Mutations
A group of individuals of the same species Population
Change that occurs in "spurts" as a result of natural disaster or a mutation Punctuated Equilibrium
Small variations that occur gradually, over a long period of time Gradualism
Created by: joy33133
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