Differences between Agnatha and Gnathostomata
S.N. Agnatha Gnathostomata 1. Mouth is circular without jaws. Mouth is provided with jaws. 2. Paired appendages are lacking. Paired appendages are present, may be […]
Month: May 2023
Excretory System in a Frog
Kidney is the most important excretory organ of frog. Frog mainly excretes urea, ammonia and water. In tadpole, kidney is pronephric but in adult kidney […]
The Arterial system in human beings
The blood vessels which carry oxygenated blood away from the heart and supply blood to various body parts collectively constitute the arterial system. The major […]