All of these functions help maintain homeostasis within the body. 7. Nervous System: The nervous system is comprised of the central nervous system and the peripheral nervous system. The hypothalamus within the brain is one of the key players in the human body in maintaining homeostasis.
Which process fills lakes of underground water? Which is the layer underground where there are no empty spaces for water or air to fill in? What is the underground water that fills opening in soil and cracks in layers of rock? Ground Water, which seeps into the soil and fills the cracks unerground.
We live at the bottom of an invisible ocean called the atmosphere, a layer of gases surrounding our planet. Nitrogen and oxygen account for 99 percent of the gases in dry air, with argon, carbon dioxide, helium, neon, and other gases making up minute portions. Water vapor and dust are also part of Earthâs atmosphere. Other planets and moons have very different atmospheres, and some have no atmospheres at all.