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. Edible Molluscs: (i) Edible Oysters: From ancient times the Romans and Greeks used the oysters as a main dish in their meals. The Red Indians were great oyster eaters. The maximum amount of oyster meats are collected from two genera— Ostrea and Crassostrea, which belong to the family Ostreidae and class Bivalvia. In Japan, United States and Europe over [...]