Given a scientific question, generate a correct answer to it.

[Q]: Ionic compounds contain cations and anions rather than what?
[A]: discrete neutral molecules

[Q]: How do glucose, ions, and other larger molecules leave the blood?
[A]: through intercellular clefts

[Q]: Many disciplines within the study of biology contribute to understanding how past and present life evolved over time; these disciplines together contribute to building, updating, and maintaining this?
[A]:
tree of life