Which pair of functional groups below include a acid and a base (acid: base)?
a. amino: carbonyl
b. carbonyl: carboxyl
c. sulfhydryl: hydroxyl
d. carboxyl: amino
e. hydroxyl: carboxyl?

The large ground finch obtains food by cracking seeds. what is its short, strong beak an example? a) tendency toward perfection b) adaptation of a species over time c) selective use and disuse of an organ over time d) scarcity of recourses

Explain light independent reactions

The idea that all living things are made up of cells is considered scientific law. this means the idea is an emerging scientific idea that has a logical explanation. has been tested with similar results at least twice. is supported by scientific consensus and a large amount of evidence. has been rejected only once by the scientific community