The changing of water into hydrogen and oxygen gas is an example of a:

a) physical change

b) chemical change

c) nuclear change

You are infected with a bacterial disease. Your sister had this same illness last week, and took a full cycle of antibiotics. She quickly became better. You started taking the same antibiotic, but they had no effect.

Why does the large truck have a lower acceleration than the car with the same force

While viewing a water sample under a microscope, you observe a single cell. Which of the following observations could you use to determine if the cell is prokaryotic or eukaryotic? A. The cell contains genetic material. B.

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. Of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed.

What is pisum sativum an example of

What allows otters to live in large groups

The chemoreceptors of the tongue respond to monosaccharides (sugars), metal ions (salty tastes), alkaloids, and acids. which type of receptor do you think is the most sensitive? why?

Explain why controlling the proteins in an organism controls the organisms characteristics

Which statement is false concerning lactic acid? a. It is formed during fast glycolysis b. It is formed when hydrogens combine temporarily with pyruvate c. It can diffuse into the blood and be carried away from the site of production d.

Imagine that you are observing an enzyme-catalyzed reaction in the lab. Every time you add more enzyme, the reaction rate increases proportionally until the reaction rate suddenly levels off.