During hibernation frog respires through:
Skin
During hibernation, frogs remain submerged in mud/water and lungs are not actively used; oxygen exchange occurs through the moist, permeable skin (cutaneous respiration).
Lymph is a tissue fluid present in intercellular spaces. It resembles to
The protein-digesting enzyme secreted by the stomach wall in case of mammals is called
Organisms capable of using CO2 as principal carbon source are called:
Which one of the following statements is NOT correct?