Active transport moves molecules from and to which concentration?
A. high to low
B. low to high
C. low to lower

14. which of the following codons code for threonine? a. ucg b. ugu c. cga d. aca

When rutherford performed his metal foil experiment, he was surprised that most of the alpha particles

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.