Which part of an amino acid is the only one that varies and is what defines its properties? A. The amino group B. The R group C. The carboxylic acid group D. The nitrogen base

How does pressure change with ocean depth?

A bacterial cell can divide several times in an hour. Few animal or plant cells can divide as quickly. Which of the following statements best explains this difference? A. Eukaryotic cells are smaller than prokaryotic cells. B.

What is most important about Earth's atmosphere? A. It always makes airplane rides smooth. B. It makes beautiful sunsets. C. Without it, there would be no air to breathe. D.

Which of these best completes this concept map? A - Animal Cell B - Prokaryotic Cell C - Virus D - Plant Cell

What is Occam's Razor

Which best describes the effects of hurricanes? A. Hurricanes tend to deposit more sediment than they remove. B. Hurricanes have storm surges that cause widespread flooding. C. Hurricanes have wind gusts that are fast but generally weak. D.

Large amounts of atmospheric carbon dioxide are absorbed by a.) animals b.) oceans c.) volcanoes d.) petroleum

What does yeast metabolize?

A 25 year old male develops a tumor of the breast glandular tissue. which type of tumor is this tumor classified as?

Genes determine the what of organisms?