Biology Internal Exam - Stage 1

A signal to which an organism responds

What is the independent variable in this experiment

Observations lead to a

Scientific papers reviewed by anonymous, independent experts

Organization in charge of stablishing the units of measurement in science

Researcher need it to design experiments that yield accurate data

Combination of chemical reactions through which an organism buils up or breaks down materials

Experiment in which only one variable is changed

Evidence, gathered information from observations

Is the condition of having a relatively stable internal envieronment

Molecule that stores the complex information organisms need to live, grow and reproduce

Well-tested explanation that unifies a broad range of observations

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

Is the variable that is deliberately changed

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

Particular preference or point of view that is personal, rather that scientific

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

Is a logical interpretation based on what scientist already know

Scientists question ideas, hypothsis, and refuse to accept explanations without evidence

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

Field of biology that studies DNA and other molecules inside cells

Group exposed to the same conditions as the experimental group except for independent variable

Is the study of life

Type of reproduction that requires cells from two parents