The Science of Biology

20 terms by edwardsw 

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science

An organized way of gathering and analyzing evidence to learn about the natural world.

observation

the act of noticing and describing events or processes in a careful , orderly way

inference

logical conclusion based on observations

hypothesis

possible explanation for a set of observations or possible answer to a scientific question

controlled experiment

an experiment in which only one variable is manipulated at a time

independent variable

The experimental factor that is manipulated; the variable whose effect is being studied.

dependent variable

variable that changes as a result of a change in the independent variable

control group

the group that does not receive the experimental treatment.

data

information gathered from observations

conclusions

a decision about the hypothesis based on the results of the experiment

theory

an explanation using an integrated set of principles that organizes observations and predicts behaviors or events

bias

a particular preference or point of view that is personal rather than scientific

biology

the study of life

homeostasis

the ability of a living thing to keep conditions inside its body constant

heredity

the passing of traits from parent to offspring

evolution

a theory that explains how random changes in genetic material and competition for scarce resources cause species to change gradually

biosphere

the part of earth where life exists

metabolism

all of the chemical reactions that occur within an organism

stimulus

a change in an organism's surroundings that causes the organism to react

DNA

a complex molecule containing the genetic information that makes up the chromosomes

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