Explain how a mutation in an individual's dna occur, and describe the effect it may have on the individuals trait

Which statement accurately describes the relationship between air pressure, air density, or altitude? as altitude increases, pressure increases. as altitude increases, air density increases. air pressure and density are lowest at sea level. denser air exerts more pressure than less dense air.

An alcohol thermometer makes use of alcohol's changing in order to measure temperature. as the temperature goes up, the alcohol contained in the thermometer increases in volume, filling more of the thermometer's tube.

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.