In 15 words or less, describe how PCR works.

How has the study of mitosis affected scientists' knowledge of cancer? It led to a study of how to induce cancer cells to divide more rapidly. It led to an understanding of how cancer cells divide so rapidly.

What ways do enzymatic catalysts increase the rates of reactions?

Which of the following is a phase of mitosis? A. cytokinesis B. interphase C. telophase D. None of the above

Which of the following are the elements in the sulfhydryl group? A.) hydrogen and sulfur B.) carbon, hydrogen, and sulfur C.) carbon, hydrogen, sulfur and nitrogen

A photosystem is: A: a collection of hydrogen-pumping proteins B: a collection of photosynthentic pigments arranged in a thylakoid membrane C: a collection of photosynthetic protons arranged in a thylakoid membrane D: found only in prokaryotic

Which of the following would be an example of species diversity? the number of different kinds of plants in an ecosystem the number of different kinds of animals living in all ecosystems the number of different kinds of plants and animals in an

Which of these was not characterized of the first cells on Earth? A. anerobic B. prokaryotic C. single-celled D. contained organelles

Where would you expect to find green algae? Choose three answers. A. in the shadow of a cactus B. between the grasses in a marshy pond C. in a dark hollow in a rainforest D. in a shallow ocean lagoon

A diamond has a density of 3.5 g/cm what is the mass of a diamond with a volume of 3.0cm

Bone remodeling during which a client's osteoclasts resorb bone