रॉमबेंसिफेलॉन (Rhombencephalon) बाद में निम्नलिखित में से किन द्वितीयक संरचनाओं में विभाजित होता है?

On the basis of the amount and distribution of yolk, a frog's egg is classified as:

If the thyroid gland is completely removed from a frog tadpole, it will:

What major biological change occurs during the pupal stage inside a chrysalis?