_______ is essential for the neuronal control of fundamental physiological functions such as breathing and heartbeat A: Cortex B: Cerebellum C: Brain Stem D: Spinal cord

5. The computer, which seems to play the role of a human brain, is often called an electronic brain.

2. Why do human beings have a larger brain compared to chimpanzees? A: Human beings always had a big brain that helped us to survive. B: Human beings have a bigger brain by cooking food over the fire. C: Human being have a bigger brain through the evolutionary process. D: Human beings have a bigger brain through eating fruits and berries. E: Human beings have a bigger brain through migration.

The peripheral nervous system(PNS) consists of （） A: brain ，brain stem 脑，脑干 B: brain， cranial nerves 脑，脑神经 C: spinal cord，brain stem脊髓，脑干 D: spinal cord ， spinal nerves 脊髓，脊神经 E: spinal nerves ，cranial nerves脊神经，脑神经

It can be inferred from what Denis Park says that ______. A: mental performance can be improved B: mental ability is determined entirely by brain structure C: people of different ages use different parts of the brain for memorizing D: different parts of the brain are responsible for different mental activities