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Southpaw Hare · Answer 1 · 2021-01-07T15:38:29+0000

Answer:

Humans have two types of communication systems. These are the nervous system and the endocrine (hormone) system. These systems regulate body processes through chemical and electrical signals that pass between cells

Tabbyofjudah · Answer 2 · 2021-01-11T02:42:56+0000

Answer:

The nervous system is a complex network of nervous tissue that carries electrical messages throughout the body. It includes the brain and spinal cord.

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