Bio 1.1 Intro to Biology

Multiple Choice

A hypothesis that is supported many times may become a(n)

• theory.

• hypothesis.

• conclusion.

• independent variable.

Multiple Choice

A prediction that can be tested is a 

• conclusion.

• hypothesis.

• theory

• independent variable.

Multiple Choice

What is the part of an experiment that can be changed?

• independent variable.

• conclusion.

• theory

• hypothesis.

Multiple Choice

In controlled experiments:

• All critical variables are manipulated

• One variable is manipulated while others are held constant

• All variables are independent of each other

• All variables are held constant

Multiple Choice

This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted. 

• experimental group
• control group
• data
• variables

Multiple Choice

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...

• The type of plant
• The amount of sunlight
• The type of music
• The type of liquid

Multiple Choice

A student wants to test the effects of type of exercise on heart rate.  What is the dependent variable?

• heart rate
• type of exercise
• amount of exercise
• time of day exercise occurs

Multiple Choice

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what are the constants?

• Type of plant, amount of music, and sunlight
• Water, apple juice, milk
• Plant growth

Multiple Choice

The graph below shows atmospheric carbon dioxide levels since the year 1880.Which of the following conclusions can be drawn from this graph

•  Atmospheric carbon dioxide levels are responsible for global temperature change.
•  Atmospheric carbon dioxide levels have been rising at about the same rate for the past century.
• Atmospheric carbon dioxide levels have remained the same over the past century.
•  Atmospheric carbon dioxide levels have been rising at an increasingly higher rate as the past century has progressed.

Multiple Choice

In order to be accepted, a scientific theory must be

•  widely tested and supported by extensive data
•  based on the results of a single experiment
•  controversial and cause debate
•  in line with all previous historical ideas

Multiple Choice

Which type of data involves numbers that are obtained by counting or measuring?

• quantitative
• qualitative

Multiple Choice

Which type of data involves descriptions that cannot be counted or measured?

• qualitative
• quantitative

Multiple Choice

Changing the time you eat breakfast will have no effect on your daily mood. This statement is an example of a ___.

• Null Hypothesis

• Alternative Hypothesis

• Generalization

• Assumption

Multiple Choice

Which is NOT an example of an alternative hypothesis?

• Eating breakfast 30 minutes earlier will improve your mood for the day.

• Increasing the temperature of water will increase the growth rate of bacteria.

• Temperature of water has no effect on the speed of swimmers.

• Tylenol will allow for relief when consumed by patients with headaches.

Multiple Choice

Statement of fact usually as a mathematical formula. Generally accepted to be true & universal; basis for scientific method.

• Hypothesis

• Theory

• Scientific Law