TC Bio Unit 1 Test Review

What is the most basic unit of life?

• cell
• tissue
• organ
• organ system

What is the smallest level of organization that has ALL of the characteristics of a living thing?

• Molecule

• Macromolecule

• Cell

• Tissue

Biology is the _____.

• study of abiotic factors

• study of life

• study of chemicals and their properties

• study of the physical properties of the world

A hypothesis is a possible explanation that can be tested by observation or experimentation.
True or False

• True
• False

Biology is the study of nonliving things. 
True or False

• True
• False

A scientist noticed that the number of salamanders in pons in the Rocky Mountains was declining. This was a(n)

• hypothesis
• observation
• theory
• control

The English physician Ronald Ross wanted to find the cause of malaria. Based on his observation, Dr. Ross suggested that the Anopheles mosquito spread malaria from person to person. This suggestion was a...

• prediction
• hypothesis
• theory
• scientific "truth"

Scientific hypotheses are most often tested by the process of...

• communicating
• inferring
• experimenting
• analyzing data

The term biosphere refers to the parts of Earth that contain

• freshwater environments.

• living things.

• land masses.

• greater biodiversity.

An individual living thing is called a(n)

• species

• cell

• atom

• organism