Warren Bio - The Study of Life

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20 terms

biology

the study of life

organism

anything that possesses all the characteristics of living things

cell

the smallest unit of life

reproduction

production of offspring by an organism

DNA

the universal genetic code of living organisms

growth

an increase in the amount of living material and formation of new structures in an organism

development

all the changes that take place during the life of an organism

environment

biotic and abiotic factors within an organism's surroundings

stimulus

anything internally or externally that causes the organism to react

response

a reaction to a stimulus

homeostasis

regulation of an organism's internal environment

metabolism

an organism's ability to build up or break down materials through chemical reactions

theory

a well-tested explanation that unifies a broad range of observations

science

an organized way of gathering and analyzing evidence about the natural world

hypothesis

a scientific explanation for a set of observations that can be tested

independent variable

the variable that is deliberately changed

dependent variable

the variable that is observed and changes in response to the independent variable

control group

a group that is used to compare results

sexual reproduction

cells from two parents unite to form the first cell of a new organism

asexual reproduction

a single organism produces offspring identical to itself

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