How does a frog differ from a human? a) Frogs possess a hepatic portal system. b) Frogs have nucleated acid blood RBCs. c) Frogs have a thyroid gland. d) Frogs contain paired cerebral hemispheres. Explain about the digestive system. ...
“A nictitating membrane is found in many mammals, although we humans have lost it,” says zoologist Sue Evans at University College London. “Its main function isto clean and wipe the surface of the eye. In frogs it is basically a modified part of the lower eyelid, and thus modified ski...