What is the most important role of hydrogen bonding between water molecules?

A - It allows cells to keep water in balance.

B-It allows oxygen and hydrogen atoms to be changed.

C - It enables water molecules to bond to each other

Which part of society uses the greatest amount of available freshwater?

Saki went on vacation and was fortunate enough to get to see the aurora australis. What solar activity did she observe?

Gated channel in a cell membrane allows A. osmosis. B. simple diffusion. C. active transport. D. facilitated diffusion.

Which of the following would be considered a limited resource in the lower depths of the ocean?

What types of skeletal changes occurred during whale evolution?

Fungal cell walls contain the carbohydrate

George, who is 60, couldn't understand why he was slowly gaining weight. He was eating the same amount of food that he had each day since he was 20 and he exercised regularly. What could explain his weight gain? A) His metabolism had slowed down.

Relate tissues to organs and organ systems. Give an example.

Which of the following is an example of a Global Environmental choice? A students deciding to ride bicycles to their school B Nations meeting to discuss the ozone layer C a Town Council considering a new nature Refuge D a family deciding to recycle

What is the wavelenght of a 1-kilohertz (kHz) sound traveling in water