Intrinsic Differences In Arthropods And Mollusks

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Comparing the Intrinsic Similarities and Characteristic Differences in Arthropods and Mollusks.

Coastal regions possess a unique characteristics in which all plant and life forms have to adapt in order to be able to survive in such regions. One major characteristic of these regions is due to the constant wave motion of the seas in coastal regions. Hence, life forms such as Arthropods and Mollusks, predominant life forms present in these coastal regions, adapt and specialize to be able to thrive in such an environment.
Both Arthropods and Mollusks fall under the Kingdom Animalia, also known as Metazoans and both are Protostomes. Both of these phyla evolved at roughly the same time period during the Cambrian Period around 540 million years ago
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Shells are generally present in most Mollusks with exceptions such as that of certain Cephalopods such as octopuses, squids and cuttlefish, Aplacophores and certain Gastropods such as that of the sea hares such as Syphonota …show more content…
This refers to the specialization of different segments of the body to give rise to specific function. One hypothesis I may propose to the benefit of this evolution is that by compartmentalizing each specialized function to each segment, nerve impulses can be transmitted more effectively in the body allowing Arthropods to be more efficient in survival as well as catching their prey. Certain groups of Mollusks on the other hand merely evolved cephalization, forming heads with tentacles and eyes.
An extension to tagmatization of Arthropods is the ability to moult in order to grow. This refers to the shedding of the old exoskeleton replaced with a new larger exoskeleton. Mollusks on the other hand requires the mantle in order to maintain its shell. One hypothesis as to have an advantage for moulting is that Arthropods are able to remove any parasites that hosts itself onto the exoskeleton body, allowing for prolonged survival for the

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