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Who was the first to propose an objective definition of instincts in terms of animal behaviour?

Correct answer: D. Darwin

  • A. Wallace
  • B. Lamark
  • C. Lyell
  • D. Darwin

Explanation

Darwin used the word instinct in several different ways to refer to what impels a bird to breed; to a disposition, such as courage or obstinacy in a dog; to selectively bred patterns of behaviour such as the tumbling movements of tumbler pigeons; to feelings such as sympathy in people; and to stereotyped actions such as those employed by honeybees when constructing the cells of a honeycomb.

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About Coordination and Control

Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.

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