William is conducting an experiment to see whether objects float or sink in water depending on their density. He makes certain that each object he tests is the same shape and volume. He also uses the same amount of water in each trial. Which of these are constants in William's experiment?

Kinases add - groups to other enzymes. this activities some enzyme while inhibiting other

Which of th following is needed for cellular respiration to occur

Which of the following options describes photosynthesis correctly? question 8 options: a plant uses carbon dioxide and water to make oxygen and nitrogen a plant breaks down sugar to make carbon dioxide. a plant uses sunlight, carbon dioxide, and water to make sugar and oxygen. a plant uses sunlight to break down sugars for digestion into water and oxygen.