Active transport systems are a form of cell transport that requires energy from molecules of

Which of the four major uses is predicted to change the least by 2020?

Which would best keep the oxygen cycle stable? a. cutting down jungles to create farmland b. eliminating parks in large cities c. dumping toxic chemicals into the ocean d. reducing the amount of deforestation d. reducing the amount of deforestation

The science for classifying and naming organisms is known as