In animals coordination is achieved by means of?
Correct answer: D. Both A and B
- A. Nervous system
- B. Endocrine system
- C. Respiratory system
- D. Both A and B
Explanation
Animals coordinate body activities through both the nervous system, which uses rapid electrical signals, and the endocrine system, which uses hormones carried in the blood. Choosing only the nervous system overlooks hormonal coordination, making option a the likely distractor.
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