Wednesday, October 9, 2013

Brain

                                                     
                                                                 Brain

This article is about the brains of all types of animals, including humans. For information specific to the human brain, see Human brain. For other uses, see Brain (disambiguation). Brain is important thing for a animals and humans. Humans brain are 20 times bigger than a dog's brain,400 times bigger than a crow's brain and 1,000,000 times bigger than a mosquito's brain. Humans need such a big brain because humans are the most helpless of animals. We use our brain to think. The brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals—only a few invertebrates such as sponges, jellyfish, adult sea squirts and starfish do not have one, even if diffuse neural tissue is present. It is located in the head, 

                                                               Human brains

Human brain has 100,000,000,000 ( 100 billion ) nerve cell. When we want to move our brain will send our legs a message to move. We are not the biggest,the strongest,or the fastes Our brain help us to survive. if we don't have brain we can't do anything.

                                                             Babies' Brains

Babies can cry to make its parents and others pay attention to it. A babies' brain, however, is not able to do many things that it will have to do later.
                                            Worm brain

Worm brains have 302 nerve cell.




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