Labels:book | ellipse | hakham | plant | sky | vegetarianism OCR: MESSAGE SYSTEMS NIMALS use two message into the blood stream. These are systems to coordinate the carried around the body and may act activities of their cells and organs: the upon every organ The two systems nervous system and the endocrine often work toge ther For example, 11 system. The nervous system transmits response to predator, the brain messages between two specific places 1f makes an run away using the the body via nerve impulses The nervous system, and causes the heart endoc rine system sends messages by rate to be raised using hormone releasing chemicals called hormones released by the endocrine system Epinephrine CASCADE Enzy me EFFECT Cyclic AMP single molecule of the bormone the epinephrine proa Protein kinase Glycogen stimulates uction of millions 01 f glucose 100 phosphory ...
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