Question
Biology Question on Kingdom Animalia
Metamorphosis of insects is regulated through hormone
A
pheromone
B
thyroxine
C
eedysone
D
all of these.
Answer
eedysone
Explanation
Solution
Eedysone is a steroid hormone, secreted by a pair of prothoracic glands in the thorax of insects and by Y organs in crustaceans, that stimulates moulting and metamorphosis. In insects its release is stimulated by prothoracicotropic hormone.