Ozone is a gas in the atmosphere that protects everything living on the Earth from harmful ultraviolet (or UV for short) rays from the Sun
i think its B. begins to divide and implants itself in the wall of the uterus
The automatic nervous system is responsible for the internal organs in the human's body and regulation of its functions:<span> the heart rate, digestion, respiratory rate, pupillary response, urination, and sexual arousal.
Unlike </span>the somatic nervous system, the autonomic nervous system <span>consists of a sympathetic and parasympathetic nervous system.</span>
