Learn about the comparison between respiratory organs of Unio and Pila. Comparison # Unio: 1. Modes of respiration in Unio is aquatic. 2. Respiratory organs in Unio are primarily the gills. Highly vascular mantle also acts as an accessory respiratory structure. 3. Two highly developed symmetrical gills are situated one on each side of the body of Unio. 4. Structure [...]
The upcoming discussion will update you about the difference between Coelom and Haemocoel. Difference # Coelom: 1. Embryologically coelom is the secondary body cavity formed within the mesoderm. 2. Perivisceral body cavity of most triploblastic animals. 3. Coelom is lined by coelomic epithelium. 4. Coelom does not contain haemocoelomic sinuses and haemocoelomic channels. 5. Blood passes from arteries to the [...]
1. Skin and mantle. 2. Molluscan gills or ctenidia or branchiae and 3. Lungs or pulmonary sac. The outer covering of the body (skin) and mantle usually act as accessory respiratory organs. 1. Skin and Mantle — as Respiratory Organs: Skin appears to be the simplest type of respiratory structure encountered in Molluscs. It acts as a respiratory organ in [...]