The patellar reflex or knee(j)erk reflex doesn't happen when your leg is straight because the tendon is relaxed. In order for the reflex to be elicited, the tendon must be flexed or stretched.
Answer:
A. used to pass on genetic traits
Explanation:
I know things.
to make ATP, H+ ions will flow through the ATP synthase. this movement through ATP synthase will create enough energy for ATP to be formed.
