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Control and Coordination, Structural unit - nerve cell (neuron). It is …
Control and Coordination
Coordination in plants
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Phytohormones
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Abssisic Acid (increases senscence, inhibits growth and called as stress hormone)
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Hormones in Animals (endocrine, hormones travel through blood)
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Structural unit - nerve cell (neuron). It is Longest cell, elongated and branched. It carries messages in form of electrical impulse
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Controls all involutary and reflex actions, controls muscular activities, iunforms about surroundings by sense organs, enables us to think, reason and remember
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The brain helps in making decsicion, controls respiration and heart beat, stores information etc. It is protected by skull (cranium)