23 terms

Ch 1 Biology Miller-Levine

Ch 1 The Science of Biology by Miller & Levine
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Terms in this set (...)

Science
An organized way of gathering and analyzing evidence about the natural world.
Observation
The act of noticing and describing events or processes in a careful, ordinary way.
Inference
A logical interpretation based on what scientists already know.
Hypothesis
A scientific explanation for a set of observations that can be tested in ways that support or reject it.
Controlled Experiment
Where a hypothesis is tested with only one variable changed.
Independent Variable
Factor that is deliberately changed by the scientist. Also, known as the manipulated variable.
Dependent Variable
factor that changes due to what you changed (this is what you are measuring to verify or refute your hypothesis)
Control Group
Exposed to the same conditions as the experimental groups except for the independent variable (also called the negative control).
Data
Information and records of experimental observations.
Theory
A way to gather many similar hypotheses into one group.
Bias
A particular preference or point of view that is personal rather than scientific.
Biology
The study of life.
DNA
The information of living growing and reproducing stored in a genetic code written in this molecule.
Stimulus
A signal to which an organism responds.
Sexual reproduction
Cell from two parents unite to form the first cell of a new organism.
Asexual reproduction
Single organism produces offspring just like itself.
Homeostasis
Keeping internal environmental relatively stable, despite harsh environmental changes.
Metabolism
Combination of chemical reactions through which and organism creates energy.
Biosphere
The way all forms of life are connected.
Constant
Any factor which is the same in every group to an experiment.
Revision
To look at something again, changing it to make it better.
4 traits scientists share (COSC)
creativity, open-mindedness, skepticism, curiosity
How can you tell if something is alive? (7 things)
contains DNA, grow and change over time, respond to their environment, reproduce, maintain internal environment, obtain and use energy, made-up of cells