Suppose a certain poison kills human cells by blocking pores in the nuclear membrane. Explain why it would or would not kill bacteria.

How does the jet stream influence global weather? The jet stream moves weather from one place to another. Thunderstorms are produced by the jet stream. Hurricanes are produced by the jet stream. Tornadoes are produced by the jet stream.

Is the total genetic information packaged in a cell?

Which term is used for the group of proteins that are catalysts for metabolic reactions? A.) carbohydrates B.) vitamins C.) nucleic acids D.) enzymes

1. Even though the Sun is much larger than the Moon, the Sun's effect on tides is about half that of the Moon. Why is this so? * A. The Moon was once part of the Earth so it is made of similar materials. B.

Which of the following is not part of a nucleic acid?

Which stage of the cell cycle involves cell growth and DNA replication? A) mitosis B) cytonesis C) interphase D) prophase

Approximately what percentage of a human's DNA is used for coding information for the synthesis of proteins?

Carbohydrates may form larger carbon-based macromolecules by combining with which elements? A.) sodium, potassium, nitrogenB.) nitrogen, sulfur, phosphorusC.) potassium, sodium, sulfurD.) silicon, phosphorus, sodium

What type of chemical reaction is used by liver cells when synthesizing glycogen from glucose?

Select the correct answer. How is a conductor different from an insulator? A. The free movement of electrons within a conductor permits the transfer of charge. B. The free movement of protons within a conductor permits the transfer of charge. C.