The proposal that one type of organism can change gradually into another type over a long period of time is known as __________.

After taking your biology exam, you return to your car only to find that you had left the lights on and now the car battery is dead. Your friend offers to jump-start your car, but when you go to hook up the jumper cables you find that the battery terminals are covered with corrosion due to battery acid condensation. Based on your knowledge, what substance could be used to clean the corrosion?

Based on hierarchical levels of biological organization, which represents the broadest level?

When two atoms share a pair of electrons, the bonding is referred to as __________.

Macromolecules that are used by most organisms to store hereditary information are called __________.

A dental student wants to test if fluoride is an effective additive against tooth decay. The student studies tooth decay in a population of people who live in neighborhoods supplied with fluoridated water. This student would like to ask whether access to fluoridated water prevents tooth decay. What would be an effective control group to ask this question?

Individuals that are heavy smokers may eventually have trouble clearing the mucous from their lungs because the structures that move fluid along the epithelial lining of the lung become damaged over time. What are these structures called?

Proteins digested by trypsin in the stomach are broken down to amino acids in __________.

The specific amino acid sequence of a protein is its __________.

Organic molecules have a carbon backbone and __________ such as -OH and -NH 2 that can form hydrogen bonds.