The upcoming discussion will update you about the difference between penis and hemipenis. Difference # Penis: 1. A single intromittent organ which is found in the males of turtles, crocodiles, in some birds and mammals, called penis. In marsupials the penis is forked for the paired lateral vagina. 2. The penis is situated mid-ventrally in front of anal or cloacal [...]
Let us learn about the comparison of brain between toad, lizard, pigeon and pig. Comparison # Toad: 1. Forebrain: The two olfactory lobes are fused together anteriorly. Olfactory peduncle is absent. These lobes are responsible for the sense of smell. 2. Cerebral Hemispheres: Cerebral hemispheres are divided by a longitudinal fissure. The roof of the hemisphere is thick, smooth and [...]
The below mentioned article provides a study note on integument in mammals. The integument or skin in mammals as well as in all vertebrates is continuous with the mucous membrane of mouth, rectum, urinogenital organs, nostrils and eyelids. The skin is made up of two distinct and embryo-logically different layers. The outer layer is epidermis and it is ectodermal in [...]