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Biology Ch.1

TermDefinition
adaptation evolution of a structure, behavior, or internal process that enables an organism to respond to environmental factors and live to produce offspring.
biology the study of life that seeks to provide an understanding of the natural world.
development all of the changes that take place during the life of an organism; a characteristic of all living things
energy the ability to cause change; organisms use energy to perform biological functions
environment biotic and abiotic surroundings to which an organism must constantly adjust; includes air, water, weather, temperature, other organisms, and many other factors
evolution gradual change in a species through adaptations over time.
growth increase in the amount of living material and formation of new structures in an organism; a characteristic of all living things.
organism anything that possesses all the characteristics of life; all organisms have an orderly structure, produce offspring, grow, develop, and adjust to changes in the environment.
organization orderly structure of cells in an organism; a characteristic of all living things.
reproduction production of offspring by an organism; a characteristic of all living things.
response an organism's reaction to a change in its internal or external environment.
species group of organisms that can interbreed and produce fertile offspring in nature.
stimulus anything in an organism's internal or external environment that causes the organism to react.
control in an experiment, the standard against which results are compared.
data information obtained from experiments, sometimes called experimental results.
dependent variable in an experiment, the condition that results from changes in the independent variable.
experiment procedure that tests a hypothesis by collecting information under controlled conditions.
hypothesis explanation for a question or a problem that can be formally tested.
independent variable in an experiment, the condition that is tested because it affects the outcome of the experiment.
safety symbol symbol that warns you about a danger that may exist from chemicals, electricity, heat, or experimental procedures.
scientific methods procedures that biologists and other scientists use to gather information and answer questions; include observing and hypothesizing, experimenting, and gathering and interpreting results.
theory explanation of natural phenomenon supported by a large body of scientific evidence obtained from many different investigations and observations.
ethics the moral principles and values held by humans
technology application of scientific research to society's needs and problems.
homeostasis organism's regulation of its internal environment to maintain conditions suitable for survival; a characteristic of all living things
Created by: geoffereyj
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