Air enters through the mouth or nose and travels through the

1. Which statement best describes the galaxies closest to the Milky way? These galaxies are independent of and unaffected by the milky ways gravitational pull These galaxies are all identified as spiral These galaxies include irregular, spiral, and

What conclusions can be drawn about an insect stuck in amber?

Any size group of interacting parts that form a complex whole is a (n) A. sphere B. energy source C. tectonic plate D. system

Which kind of wave would be observed in outer space between planets, where there is very little matter? A. An electromagnetic wave, such as an x-ray B. An electromagnetic wave, such as a sound wave. C. A mechanical wave, such as an x-ray. D.

DNA sequences can act as "tape measures of evolution". Some highly conserved regions of the human genome (similar to comparable regions in other species) don't code for proteins. Why? Propose a possible explanation for this observation.

Who was one of the first scientist to use numbers to look for patterns in experimental data

What action should you take when an earthquake occurs?

Two advantages of using a nuclear power station rather than a coal fired power station to generate electricity

Define the term ecology

How do you defferintiate between prinsil and stamen