Unit 1 Test Flashcards
In a controlled experiment, you should be testing how many variables at once?
One
This is the variable that changes as a result of whatever you are manipulating in the experiment
Dependent variable
The variables that are kept constant between your groups are
Controlled variables
A testable, possible explanation for a set of observations
Hypothesis
How many groups should you have in a controlled experiment
At least two
This is NOT one of the properties of life
Movement
What is the smallest structure that can perform all the activities of life
Cell
Contains a nucleus
Eukaryotic cell
In order to become an accepted theory a hypothesis must be
Tested many times
This serves as a base of comparison for the experimental group(s)
Control group
A heart represents which levels of organization
Organelle, cell, tissue, organ
Which domain(s) contain prokaryotes?
Archaea and Bacteria
A hypothesis should be …..
Worded as an “if….then” statement
An possible explanation for an observed phenomenon
Testable
In an experiment to test the effect of sleep on test scores, the independent variable is
Hours of sleep
At every level of life ….. defines …….
Structure, function
What unit is used when measuring the volume of a liquid
Liters
Which of the following lists levels of organization from the simplest to most complex
Tissue, organism, population, community
Independent variables go on the ….. axis while the dependent variable go on the …… axis
X, y
What elements should ALL good graphs have
A descriptive title
Which of the following are not a major theme or biology
Life depends on the bonding and interactions between molecules
