Basics of Biology
The study of life and living organisms.
What is biology?
A possible explanation that can be tested.
What is a hypothesis?
The variable that is measured.
What is the dependent variable?
All living things are made of these basic units.
What are cells?
Something proven true repeatedly and accepted as true.
What is a scientific fact?
The difference is that one is something you sense directly, and the other is an interpretation of it.
What is the difference between an observation and an inference?
Hypotheses usually come from this—knowledge you already have.
What are prior observations or research?
At the end of an experiment, scientists look at this to decide if their hypothesis was supported.
What is the data?
Growth, reproduction, response to stimuli, homeostasis, energy use, organization, and evolution.
What are the characteristics of life?
A well-tested explanation that ties many observations together.
What is a scientific theory?
These are used to name organisms with two parts: genus and species.
What is binomial nomenclature?
The conclusion of an experiment should always do this.
What is accept or reject the hypothesis?
These factors must stay the same in every trial.
What are constants?
The domain that includes organisms with nuclei in their cells.
What is Eukarya?
The first part of a scientific name tells you this.
What is the genus?
The universal system scientists use to measure length, mass, and volume.
What is the metric system?
Ask a question, form a hypothesis, test, analyze data, and conclude.
What are the steps of the scientific method?
This group in an experiment serves as comparison and receives no change.
What is the control group?
The metric unit used to measure liquid volume.
What is a liter?
The second part of a scientific name tells you this.
What is the species?
These three major groups classify all life based on cell structure and genetics.
What are the three domains?
The part of the experiment YOU change.
What is the independent variable?
A hypothesis should always be written this way:
What is “If… then…” form?
This domain contains bacteria that live in extreme environments.
What is Archaea?
This is the main difference between a scientific theory and a fact.
What is “A theory explains why; a fact describes what is true”?