AP BIOLOGY

Detailed explanation-1: -The sensory system detects signals from the outside environment and communicates it to the body via the nervous system. The sensory system relies on specialized sensory receptor cells that transduce external stimuli into changes in membrane potentials.

Detailed explanation-2: -Receptors are groups of specialised cells. They detect a change in the environment stimulus. In the nervous system this leads to an electrical impulse being made in response to the stimulus. Sense organs contain groups of receptors that respond to specific stimuli.

Detailed explanation-3: -At the most basic level, the function of the nervous system is to control movement of the organism and to affect the environment (e.g., through pheromones). This is achieved by sending signals from one cell to others, or from one part of the body to others.

Detailed explanation-4: -Through its receptors, the nervous system keeps us in touch with our environment, both external and internal. Like other systems in the body, the nervous system is composed of organs, principally the brain, spinal cord, nerves, and ganglia.

Detailed explanation-5: -Animal behaviour is controlled by a nervous system, which is comprised of special nerve cells called neurons. The nervous system operates according to the same general principles in all types of animals. The nervous system is stimulated from the environment, through sensory receptors.