The cells that are on each side of a stomata and open and close it like a mouth are called

Which term refers to the total dollar value of the goods and services produced in a country in a year?

If the birth rate of a population of dolphins is 2.0, the death rate is 0.5, and the population size is 100, what is this dolphin's population growth?

19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that