Enzymes are meant to break down food in the mouth making it easier to consume and the food and gather the nutrients inside
Passive transport DOES NOT need energy(ATP), while active transport does.
Answer:
They are veins and arteries. The primary function of arteries is to transport highly oxygenated, nutrient-rich blood from our hearts and distribute it to the rest of our body. Veins, on the other hand, are used to pump much-needed blood back to the heart.
Answer:
not sure about the answer
