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chapter 1 study of life

population individuals of the same species occupying a certain area
community all of the species that interact within a certain area
ecosystem all of the species and physical aspects of the same environment
biosphere zone of air, land, water where living organisms are found
energy capacity to do work (needed to maintain organization)
cells need energy to perform metabolic functions
metabolism all of the chemical reactions that occur in a cell
reproduction the ability of an organism to make another organism
sexual offspring is genetically different from parents
Asexual offspring has same genes as parents
genes units of information within an individual's dna
homeostatic organisms maintain internal conditions constantly (staying the same)
species a group of individuals that can successfully interbread and produce offspring
adaptation traits that make an organism better suited to its environment
natural selection the process of the environment favors individuals with certain features
evolution change in the frequency of different traits in population over time
biologist assign organisms to one of the three domains archaea, bacteria, eukarya
scientific name for species binomial
genus name spelled first and always capitalized (italics)
specific epithet name spelled second and lower case (italics)
science a systematic way of acquiring knowledge of the natural world
biology the scientific study of life
scientific method a logical approach to solving problems
scientific theroy concept supported by a broad rang of observations, experiments, and data
technology the application of knowledge for a practical purpose
cell theroy all organisms are composed of cells
homeostatic theroy the internal environment of organisms stays relatively constant
evolution theroy all living things have a common ancestor and are adapted to a particular way of life
Created by: kelley kelley



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