The free nerve endings
can detect pain, temperature, itch and hair movement. Merkel's disks can detect pressure, position and static touch features. Pacinian corpuscles are sensitive to vibration while Meissner's corpuscles are sensitive to light and touch.
C- Single-celled organisms and soft, boneless animals.
Answer:
insulin/glucose/liver/pancreas
This process is known as a involuntary reflex.
The enzyme increases the rate of reaction it catalyzes.