Phospholipids are important components of the plasma membrane. What does “C” represent on the diagram?

Osmosis is the diffusion of ________ across a selectively permeable membrane.

Heat energy is

This is a sagittal section through the abdominopelvic cavity. What cavity does “D” represent?

Which of the following is a component of a nucleotide?

Covalent bonds form when

Which of the following is a synthesis reaction?

Hydrogen bonds form between molecules containing ________ bonds; the hydrogen bond is between a hydrogen atom of one molecule and a partially ________ charged atom of another.

Which of the following statements best describes RNA?

The cavity of the body immediately inferior to the diaphragm is the ________ cavity.