What problem do Chinese cities suffer from? A. lower life expectancy than rural areas B. lower literacy rates than rural areas C. too many hydroelectric plants D. air pollution

Aridsols are soils characteristically found in

What are the three basic components of a modern astronomical instrument? describe each in one to two sentences?

The study of genetics and inheritance begins with a look inside the nucleus of a cell true or false

What is the function of rhizoids? A. Rhizoids turn sunlight into chemical energy through photosynthesis. B. Rhizoids produce spores during one stage of the plant life cycle. C. Rhizoids absorb water and nutrients from the surrounding soil. D.

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.

Which example best describes one way that humans contribute to the water cycle? A. formation of genetic material B. evaporation of sweat from skin C. production of oxygen D. fixation of nitrogen into ammonia

How would signaling be affected if a mutation caused a g protein to replace gdp with gtp on its own without needing to be activated by the g protein-coupled receptor?

The role of an organism in the ecosystem is called its A. niche B. habitat C. species D. environment

Which condition will increase the rate of chemical reaction?

Why does DNA has an overall negative charge?