Besides Darwin, the theory of evolution by means of natural selection was also independently proposed by __________.

Proteins are polymers formed of structural units called __________.

Multiple independent experiments have demonstrated that phytochrome helps trigger seasonal change responses in plants such as changing color and loosening of leaves. Plants have the ability to respond to seasonal changes in their surroundings. This statement is an example of __________.

Which of the following is true for an organism in the Plantae kingdom? (You may select more than one answer)

Matthew noticed that his house plants were wilting badly. Which cell structure had most likely contracted?

Cilia and flagella of eukaryotic cells are composed of __________.

A modified form of cellulose found in the exoskeletons of insects and crustaceans is known as __________.

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?