Moderate

In animals chemical coordination involves:

Correct answer: B. Endocrine system

  • A. Central nervous system
  • B. Endocrine system
  • C. Lymphatic system
  • D. All of the above

Explanation

Chemical coordination in animals is carried out by hormones released by the endocrine system into the bloodstream. The central nervous system coordinates through neural signals, not primarily through chemical hormones.

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