Parasympathetic nerves govern involuntary actions such as pupil dilation, peristalsis, gland secretions, etc.
Carbon, oxygen, & hydrogen may all be elements found in ethanol, but when separated, they have completely different chemical compounds. They are pure elements where as ethanol is a mixture.
Matter cannot be created or destroyed so it doesn't create matter, but it does gain mass
Species abundance is the number of individuals per species, and relative abundance refers to the evenness of distribution of individuals among species in a community. Two communities may be equally rich in species but differ in relative abundance
