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Ch 1 Vocab

BIOLOGY

TermDefinition
biosphere all living things and all the places they are found on earth
biodiversity the variety of life
species a particular type of living things that can reproduce by interbreeding among themselves
biology the scientific study of all forms of life, or all types of organisms
organism any individual living thing
cell the basic unit of life
metabolism all of the chemical processes that build up or break down materials
DNA the genetic material in all organisms
system an organized group of related parts that interact to form a whole
ecosystem a physical environment with different species that interact with one another and with nonliving things
homeostasis the maintenance of constant internal conditions in an organism
evolution the change in living things over time
adaptation an inherited trait that gives an advantage to individual organisms and is passed onto future generations
observation using your senses and other tools to study the world
data recorded observations
hypothesis a proposed answer for a scientific question
experiments testing the hypothesis
independent variable a condition that is manipulated
dependent variable the experimental data
constants the conditions that do not change in an experiment
theory a proposed explanation for a wide range of observations and experimental results that is supported by a wide range of evidence
microscope provides an enlarged image of an object
gene a segment of DNA that stores genetic information
molecular genetics the study and manipulation of DNA on a molecular level
genomics the study and comparison of genomes both within and across species
biotechnology the use and application of living things and biological processes
transgenic organisms that have genes from more than one species, or have altered copies of their own genes