A gene is a hereditary trait in your body and also apart of your DNA not visible to the naked eye making up how you look
Oh man i remember learning about this but i cant remember what the answer is i will see what I can do :D
Answer: peristalsis
Explanation:it's the contraction and relaxation of muscles as the bolus moves down the oesophagus
Active transport.
Passive transport, being its opposite, requires no energy at all. Therefore, active transport would require energy or ATP in order to move across.
Hope this helps!
