Which of the following is not a type of nephridia present in earthworm?

For how long will a cockroach survive if its head is cut off?

Microvilli is present in the epithelium of ___

Which of these is not a sense organ in cockroach?

Which of these is not a function of the sensory system of earthworms?

Which of the following muscle is represented in the given diagram?

Which of these structures do not help in excretion in cockroaches?

Which of these is not a function of ear in frog?