<span>factor is a variable
I would say its false, you can test 1 factor at a time</span>
The digestive system facilitates excretion of wastes by eliminating wastes from the digestive tract. During the digestion process, after the nutrients in the food has been absorbed by the small intestine, the waste products in the food will be moved into the large intestine where it will be processed for elimination in the form of feces. <span />
The main function of DNA polymerase<span> is to make </span>DNA<span> from nucleotides, the building blocks of </span><span>DNA</span>
Answer:
Gases that lead to air pollution include carbon, nitrogen and sulfur oxides. Explanation: