Multiple choice

Ecdysone is secreted by ____.

  1. birds

  2. molluscs

  3. insects

  4. lobsters
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ecdysone is the molting hormone in insects and other arthropods, produced by prothoracic glands. It triggers metamorphosis and molting by regulating gene expression. Option C correctly identifies insects as the source.

Keep practicing — related questions