It keeps them out side the body to maintain the correct temperature.
Plants regulate their water levels in two main ways: Stoma and Vacuoles.
Stoma are bean shaped cells on the leaf that allow water and gas to exit. They open and close to regulate water.
Vacuoles are organelles that store water and fluids, which help regulate them.
The outer core is believed to behave most like a liquid.
Answer:
water, air , nutrients
Explanation:
water for circulation , air for breathing , nutrients for growth
