Echinoderms and prochordates occupy a key position in vertebrate evolution. The genomes of sea urchin share 70% homology with humans. Researches on cell cycle in sea urchin and phagocytosis in asteroi
Molluscs are comprised of edible abalones, snails, mussels, oysters, cuttlefish, and squids. Since there are over 100,000 different species of molluscan, it is not surprising that their reproductive p