Write info about the evolution of the brain of vertebrates.
Answers
The vertebrate brain is the main part of the central nervous system.In vertebrates (and most other animals) the brain is at the front of the animals, in the head. It is protected by the skull and close to the main senses of vision, hearing, balance, taste, and smell. As an animal moves forward, its senses collect data about the surroundings, and that data goes directly to the brain.
Brains are extremely complex. The brain controls the other organs of the body, either by activating muscles or by causing secretion of chemicals such as hormones and neurotransmitters. Muscular action allows rapid and coordinated responses to changes in the environment; hormones and the autonomic nervous system make slower changes in the body. The brain of an adult human weights about 1300-1400 grams
In vertebrates, the spinal cord by itself can cause reflex responses as well as simple movement such as swimming or walking.However, sophisticated control of behaviour requires a centralized brain.
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