They affect metamorphosis in amphibians, if there is deficient tadpole larvae do not metamorphose instead develop into large sized tadpole:
Correct answer: D. Both a & b
- A. Thyroxine
- B. Tri-iodothyronine (T3)
- C. Calcitonin
- D. Both a & b
Explanation
Thyroid hormones are essential for amphibian metamorphosis, and both T4 and T3 participate in this developmental process. Without adequate thyroid hormone, tadpoles remain larval and may grow unusually large.
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