Radiation is one way that thermal energy is transferred from a warmer object to a cooler object. Radiation transfers thermal energy by waves. Waves are disturbances that carry energy from one place to another through matter and space. Radiation transfers thermal energy by electromagnetic waves. Electromagnetic waves transfer energy within or without matter. When an electromagnetic wave comes in contact with an object, the energy that the wave carries can be absorbed or reflected. An absorber is a material that takes in a wave when the wave hits it. A reflector is a material that causes a wave to bounce of it. Thermograms are diagrams that shows thermal energy being released by objects.
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once neurotransmitters are released into the synaptic cleft, it binds to its receptors at the postsynaptic membrane. voltage gated calcium channels open and allows calcium to flow in, an action potential is generated immediately and reaches the end of the axon
plants use osmosis whic is moving water though a semipermial membrane to draw up water. It moves from places of high conetartions of water (dirt) has to is less water (roots). When it does this the plant mains homeostasis by getting water up useing their xylem (tubes in stems) to the leaves.