Information about the evolution of the brain of vertebrates

Asked by admin @ 20/08/2021 in Biology viewed by 274 People

collect information about the evolution of the brain of vertebrates and present it in classroom answer the questions big answer

Answered by admin @ 20/08/2021

Answer:

The vertebrate brain is the main part of the central nervous system.[1] In vertebrates (and most other animals) the brain is at the front, 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. It is also a part of human and animal 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.[2] However, sophisticated control of behaviour requires a centralized brain.

The structure of all vertebrate brains is basically the same. At the same time, during the course of evolution, the vertebrate brain has undergone changes, and become more effective. In so-called 'lower' animals, most or all of the brain structure is inherited, and therefore their behaviour is mostly instinctive. In mammals, and especially in man, the brain is developed further during life by learning. This has the benefit of helping them fit better into their environment. The capacity to learn is seen best in the cerebral cortex

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Information about the evolution of the brain of vertebrates

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