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Chapter 1

Intro to biology

TermDefinition
biology the study of life
organization the high degree of order within an organism's internal and external parts and in its interactions with the living world
cell the smallest unit that can perform life processes
unicellular organisms made up of one cell
multicellular organisms made up of more than one cell
organs structures that carry out jobs in the organ system
tissues groups of cells with similar abilities and allow and organ to function
organelles tiny structures that carry out functions for a cell
biological molecules chemical compounds that provide physical structure and that bring movement
metabolism the sum of all the chemical reactions that take place and transforms materials in an environment
domains the three major subdivisions of organisms (bacteria, archea, and eukarya)
kingdoms the system of grouping that divides life into six groups and is inside domains
ecology the branch of biology that studies organisms interacting with each other in the environment
ecosystems communities of living species and their physical environments
evolution how organisms change over time
natural selection animals with favorable traits I've longer than others with less favorable traits
adaptations traits that improve an individuals ability to survive
metric system the single and standard unit of measurement for scientists
base units the seven fundamental units that describe quantities such as length, mass, and time
Created by: elizrhys
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