I need help. I got the first 3. I need help on the others I’m overwhelmed by homework

Most animal cell membranes have proteins that pump. ions out of the cell and potassium ions into this

Abeaker of water was heated and then placed on a bench in the laboratory. the water cooled until it was the same temperature as the air in the laboratory. which of these explains the mechanism by which the water cooled? a. heat energy was transferred from the water to the air. b. water molecules from the water formed warm water currents. c. the water molecules absorbed energy from the molecules in the air. d. the water released radiation until it contained no heat energy.

True or false: the ribosome reads the sequence of codons in mrna.