4. The skin is the body's major thermoregulatory organ. We control our body temperature by regulating the amount of heat we lose into the environment by changing blood flow to the skin. How does the relationship between the epidermis, dermis, and hypodermis contribute to this function?

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The type of rock she find is a sediment rock

By water evaporation from the leaves is created a negative pressure at the top of the tree that promotes the ascension  of the water through channels that are called xylem. there are also two molecule forces that are involved: the intra-water molecules cohesion (water molecules stick to each other) and the adhesion when the water molecules stick to the channels they are running in. this is what enables water to go from the roots to the top of a tall tree.