Sodium's atomic number is 11. What does this tell you about an atom of sodium?

A. It contains 11 neutrons.

B. It has 11 protons to lose in ionic bonds.

C. It contains 11 protons.

D. Its atomic mass is double this amount

Which of the following is a global economic issue? O A. The leader of a profitable company has retired. O B. One country has more tourism than another. O C. Many countries are increasing their use of fossil fuels. O D.

How much of a cell in the human body is composed of water? O A. 75 to 90% B. 75 to 80% C. 50 to 60% O D. 10 to 20%

Wet poorly drained soil is known as a

Where does a plant get the carbon dioxide that it needs for the dark reaction of photosynthesis

Osteoid-producing osteoblasts must rely upon this organelle to produce primary structures leading to the formation of collagen and calcium-binding proteins.

Describe the water that is most likely to float on the surface of the ocean.

Bryophytes are known as non-vascular plants. what makes them non-vascular?

If a person eats hurriedly and barely choose his food before swallowing it what effect will that likely have on his stomach?

What makes a living thing living?

A carcinogen is a cancer-causing substance.