the autonomic nervous system, which controls vital functions such as breathing, digestion, heart rate, and secretion of hormones. Skull The purpose of the bony skull is to protect the brain from injury. The skull is formed from 8 bones that fuse together along suture lines. These bones include the
Density is a measurement of how solid something is. Specifically it is the mass per unit volume of a substance. If you have two objects of the exact same size (volume), the more dense object will weigh more than the less dense object. So there are two things contributing to density:
Report Abuse. In physics, density is defined as mass per unit volume, not as weight per unit volume. A kilogram is a unit of mass, not weight. Moving an object into a different gravity field changes its weight, but not its mass. Therefore, the density of water is the same on Earth or on the moon.In high school, density is defined as stupidity; slow-wittedness; obtuseness, not as the ability to sink and drown in a wading pool.eport Abuse. In physics, density is defined as mass per unit volume, not as weight per unit volume. A kilogram is a unit of mass, not weight. Moving an object into a different gravity field changes its weight, but not its mass. Therefore, the density of water is the same on Earth or on the moon.