Which hormone controls the metamorphosis of a tadpole into an adult frog?

Answer as guest — Start Free Practice Test to earn Practice PointsHow to earn pointsAsk a question+3Answer a question+1Someone answers yours+1Your Q gets upvoted+1Pioneer bonus (first 5)+5, ask questions & climb the leaderboard!

A Adrenaline
B Estrogen
C Thyroxine
D Growth hormone

Show answer and explanation

Answer: C. Thyroxine

Thyroxine, made by the thyroid gland, controls the metamorphosis of a tadpole into an adult frog. Without enough iodine to make thyroxine, tadpoles do not change into frogs.

Answering after opening this box earns no Practice Points.

16 answered 44% got it right

Rules for asking and answering

Which hormone controls the metamorphosis of a tadpole into an adult frog?

More questions like this