Microvilli is present in the epithelium of ___

Which of the following tissue sections has been represented in the given diagram?

Frogs exhibit sexual dimorphism.

Which of these is not a sense organ in cockroach?

What is the median mid dorsal line present along the length of an earthworm?

By which of the following do frogs do not respire?

Which of these structures attach the testes to the kidneys in male frogs?

How many pairs of cranial nerves arise from the brain of frog?