Answer:
yes. a ecosystem consist of both biotic and abiotic factor
superior
Think of superior as above, so since it is above it will be the end towards the head. Inferior is below so it will be closer to your feet since anatomical position is standing.
D. Myosin and actin do not fully detach, so the muscle cannot relax.
processing information that is received from the stimuli receptors
sending out information so that the body can react appropriately to stimuli
coordinating reflexes and reactions to stimuli
I believe that you're question is referring to homeostasis