Although we rely on coal, oil, and natural gas to produce energy, some environmental scientists have proposed that we use less fossil fuel. One reason to support this proposal is to

There are too many potassium ions inside a cell. as a result, the cell membrane starts to expand and finally bursts. which problem is the cell most likely having?

The tip of the tongue is very sensitive to which taste sensation (s) ? A. Both sweet AND salty B. Sour C. Sweet D. Salty E. Sour

What molecules link together to form proteins? A. Nucleotides B. Amino acids C. Disaccharides D. Fatty acids

Nucleotides make up? A. Nucleic acids B. Proteins C. Carbohydrates D. lipids

5. There is a Y-shaped replication fork on each side of each replication bubble. What are the sides of the replication fork called?

If you look at the sky and see the Moon as a half-circle, what do you expect should be true about the tides that day? A. The low tides will be much lower than usual. B. The high tides will be much higher than usual. C.

What are the five evidences that a chemical change has taken place?

In frogs muscle tissue is usually grouped into large

after the brain receives information from the body's sensory receptors, what is the next step in responding to this information?

What does the endosymbiont theory explain about the origins of plant and animal cell