Which statement highlights a unique role of water in a biological system? Organisms cannot use it to regulate their body temperature.
Few organisms can use it as a living environment.
It does not provide structural support to organisms.
It provides organisms a medium to transport materials.

What is the correct lewis dot structure for arsenic?

You are attempting to recrystallize a crude product mixture. you add the appropriate amount of hot solvent and are allowing the solution to slowly cool to room temperature. however, at room temperature no crystals have appeared, which of the following methods should be used to induce crystallization? choose all correct answers. a) place the flask in an ice bath. b) swirl the contents of the flask. c) add a small seed crystal of the desired product. d) scratch the inside of the glassware using a stir rod. it can be multiple choices

Which of the following are acids or bases? 1. sodium hydrogen 2. barium hydroxide solution 3. carbonate solution