Answer:The Central Nervous System sends signals to the rest of the body and activates external and internal stimuli.
Explanation:The CNS is made up of the brain and spinal chord which send signals to the body. In addition, it controls simple musculoskeletal reflexes.
Plants<span> produce hormones and </span>respond to external stimuli<span>, growing towards sources of water and light, which they need to survive. A tropism is a growth in </span>response<span> to a </span>stimulus<span> and an auxin is a </span>plant<span> hormone produced in the stem tips and roots, which controls the direction of growth.</span>
A new type/species of plant.
Are you referring to vocal cords?
