Why is chemical communication better than …

Because 1) Electric impulses will only reach those cells connected by nervous tissue. 2) After generation and transmission of impulse it will take some time to reset its mechanism . So cells cannot continually create and transmit impulse . 3) Plants do not have any nervous system.

In animals, the message, communicated in the form of nerve impulses, from receptors (sensory neurons) to central nervous system and from latter to the effectors (muscles and glands) is very quick. The nervous coordination in animals, however, has certain limitations. For instance, (i) Nerve impulses can reach only those animal cells which are connected by nervous tissue, and (ii) such cells, after generation and transmission of nerve impulses, take some time to reset their mechanisms before a new impulse is generated and transmitted. In other words, cells can not continuously generate and transmit electrical impulses. This is the reason why most multicellular organisms use another means of communication between cells, commonly termed In animals, the message, communicated in the form of nerve impulses, from receptors (sensory neurons) to central nervous system and from latter to the effectors (muscles and glands) is very quick. The nervous coordination in animals, however, has certain limitations. For instance, (i) Nerve impulses can reach only those animal cells which are connected by nervous tissue, and (ii) such cells, after generation and transmission of nerve impulses, take some time to reset their mechanisms before a new impulse is generated and transmitted. In other words, cells can not continuously generate and transmit electrical impulses. This is the reason why most multicellular organisms use another means of communication between cells, commonly termed Chemical communication

In animals, the message, communicated in the form of nerve impulses, from receptors (sensory neurons) to central nervous system and from latter to the effectors (muscles and glands) is very quick. The nervous coordination in animals, however, has certain limitations. For instance, (i) Nerve impulses can reach only those animal cells which are connected by nervous tissue, and (ii) such cells, after generation and transmission of nerve impulses, take some time to reset their mechanisms before a new impulse is generated and transmitted. In other words, cells can not continuously generate and transmit electrical impulses. This is the reason why most multicellular organisms use another means of communication between cells, commonly termed Chemical communication.