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Bio-Chapter1-Gullett

Biology-Chapter 1 Vocabulary

TermDefinition
biosphere all living things and the places they are found on Earth
population the total number of organisms of the same species in a given area
community all the living things in a given area
species a group of organisms that are closely related and can produce fertile offspring
ecosystem all the living things in an area and their nonliving environment
biology the study of living things and their interactions with each other and the environment
science the knowledge obtained by observing natural events and conditions in order to discover facts and formulate laws or principles that can be verified or tested
organism an individual living thing
cell the basic unit of life
metabolism the total of all the chemical processes that occur within an individual organism
DNA genetic material found in living things
system an organised group of related parts that interact to form a whole
homeostasis the maintenance of stable internal conditions in an organism
evolution the change over time, specifically in living things
adaptation an inherited trait that is advantageous to an individual and is passed on to offspring
observation using tools and senses to document facts
data recorded observations / facts
hypothesis a proposed answer for a scientific question that is testable
experiment a controlled study used to test a hypothesis
independent variable the condition or factor that is changed by the scientists
dependent variable the observed changes in an experiment, recorded as data
constant the conditions of an experiment that do not change
theory a proposed explanation for a phenomena that is supported by vast amounts of observations and data.
law statements, based on repeated experiments or observations, that describe or predict a range of natural phenomena.
accuracy description of how close a measurement is to the true value
precision description of how close multiple measurements of the same thing are to each other
biotechnology the use and application of living things and biological processes as tools
molecular genetics the study and manipulation of DNA on a molecular level
genomics the study and comparison of genomes both within and across species
transgenic organisms that have genes from more than one species
biodiversity the variety of organisms in a given area
Created by: lpgullett
 

 



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