Which of the following is not a required characteristic for a living organism? A) reproduction
B) mobility
C) homeostasis
D) adaptation

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.