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The marine and terrestrial creatures show an amazing scale of varieties in its classes and that includes the animals in the phylum mollusca. The animals in the phylum mollusca is classified into different classes including the snails and sea slug which belong to class Gastropoda; bivalves, clams, oysters and scallops belong to class Pelecypoda, tusk shells belong to class Scaphopoda (tusk shells) and many other classes that were known to be marine and inland inhabitants. The animals in the phylum mollusca moastly have shells and some do not have shell as a protection to cover its body.
The animals in the phylum mollusca have soft bodies and belong to the class Cephalopoda and that includes other members such as squids, nautilus and cuttlefish. They have common features; having soft bodies with no backbone but look how amazing they move. Their power lies in there muscles and the have a strong muscular foot that is used to grabbing food and for locomotion. Some use other smaller mollusks such as shellfish and other sea creatures such as crabs and lobsters as their prey.
The animals in the phylum mollusca are found in marine, inland, terrestrial and also in the damp wet swamps. They reproduce sexually when the male’s unique sexual organ deposits spermatophores in the mantle cavity of the female mollusca. The eggs are protected as they are encased in capsulated and deposited into a rock while being guarded by the female mollusca. When these eggs are hatched without going through a larval stage it is dangerous to be eaten by other predators. The larvae can then swim freely on the surface and mingled with other creatures and when they become mature, the sink down and live their lives under the sea bottom with other family members.
Most of the animals in the phylum mollusca are pretty good in adapting to its new to specific environments. The animals in the phylum mollusca that came from other bodies of water can mingle and adapt to the new environment without getting sick. This is one of the best characteristics that most animals in the phylum mollusca have. The animals in the phylum mollusca are so diverse and complex and being created equal to other classes of phylum mollusca, they can survive in a unique way in different environments that they are moved under the sea.