compare and contrast nervous and hormonal mechanism for control and coordination in animals
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Animals are different from plants because of their ability of locomotion. This ability probably developed as they have to search for food, unlike the plants that are autotrophic. Since they move from one place to another, the animals have to continuously encounter changes in their environment. In order to maintain a steady state within the body (homeostasis), all animals should be able to perceive these changes and adapt to them.
With increasing complexity in their structure, the number and types of cells in the animal body increased. Thus it became necessary to have some coordinating mechanism. Two systems have been developed for better control and coordination of the various activities of the organisms. These systems are the nervous system and the endocrine system.
With increasing complexity in their structure, the number and types of cells in the animal body increased. Thus it became necessary to have some coordinating mechanism. Two systems have been developed for better control and coordination of the various activities of the organisms. These systems are the nervous system and the endocrine system.
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Nervous mechanism:-
1. It is performed by nervous system which sent an electrical impulse along axons and as a chemical across synapse and acts through effectors.
2. The information is transmitted instantaneously.
3. the effects are short lived.
Hormonal mechanism:-
1. It is performed by chemical sub. called hormones , secreted by endocrine glands.
2. the information is transmitted slowly not as fast as nervous mechanism.
3. the effects are generally more prolonged.
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