The nervous system may be divided two parts,
A.central nervous system a nd peripheral nervous system
B.brain and peripheral nervous system
C.spinal cord and central nervous system
D.brain and spinal cord
E.spinal nerves and brain stem
A.central nervous system a nd peripheral nervous system
B.brain and peripheral nervous system
C.spinal cord and central nervous system
D.brain and spinal cord
E.spinal nerves and brain stem
A、Nervous system and endocrine system
B、Nervous system and digestive system
C、Endocrine system and respiratory System
D、Central nervous system and peripheral nervous system
E、The first messenger system and the second messenger system
A、Immune system
B、Respiratory system
C、Nervous system
_______ one-celled organisms, nearly all animals have a nervous system of some kind.
A.Some
B.The
C.Except for
D.De Spite
A、central nervous system
B、stomach
C、peripheral nervous
D、heart
A.nerves
B.brain
C.spinal cord
D.sensory organ
Evidence shows that the AIDS virus may also attack the nervous system, ______ (对大脑造成损害).
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