Which of the small solar system bodies orbit  the sun in only a few years or as many as hundreds of thousands of years? comets meteorites asteroids meteors

Which statement describes how favorable traits in a population relate to natural selection? they are the only traits that ever exist in the population. they build in the population over time. they are rarely passed on to offspring. they are found only in a few individuals within the population.

Many birth-control pills release a constant amount of synthetic estradiols and progesterone for 21 days. true or false

2.) insulin is needed to your cells take in sugar from your blood. after you eat a candy bar, will your insulin gene be expressed or repressed? 3.) all cells have the same dna, and they all make the same proteins. true or false? the answers are 2.) expressed3.) false