--%>
Assignment Help - homework help

Type of exoskeleton of molluscs

Explain the type of exoskeleton do some molluscs have?

E

Expert

Verified

Some molluscs, such as gastropods and bivalves, excrete external calcareous carapace. Mantle secretes Calcium carbonate; fold in epidermis, making the shell. In pelecypods, this shell is made of two valves which articulate and comprises of individual body within. In gastropods, shell consists of only part of body, the visceral mass.

   Related Questions in Biology

  • Q : What is Standardization Standardization

    Standardization: This is the concept of using the minimum number of parts for the maximum number of purposes while considering the overall cost and performance of the finished product. Less time is spent selecting and evaluating parts if standard comm

    		•
  • Q : Effect of imposesing a maximum price by

    Describe what will happen while the government imposes a maximum price that is above the market equilibrium price. Why is this correct?The maximum price will have no effect on the market. It is true because the price ceiling will only have an im

    		•
  • Q : Circulatory system of cephalopods How

    How the large size of some cephalopods is associated with the type of circulatory system they present?

    		•
  • Q : Visual deficiencies-Myopia and

    How visual deficiencies termed as myopia and hypermetropia can be optically described?

    		•
  • Q : DNA replication two DNA molecules As a

    As a consequence of DNA replication two DNA molecules come in existence. Why is it not accurate to assert that two ‘new’ DNA molecules are created? What is name given to procedure relating to that fact?

    		•
  • Q : Explanation of the zooplankton and

    Give a brief explanation of the zooplankton and phytoplankton.

    		•
  • Q : Gametes and sexual spores What is the

    What is the basic difference between gametes and sexual spores? Do humans exist sexual spores or gametes?

    		•
  • Q : Describe the way of life of sponges

    Describe the way of life of sponges?

    		•
  • Q : Why are vaccines employed in the

    Why are vaccines employed in the prevention however not in the treatment of infections? Why can antivenom serums be employed in the prevention and treatment?

    		•
  • Q : What is Data Dictionary Data Dictionary

    Data Dictionary: It is a collection of descriptions of the items or data objects in a data model for the profit of programmers and others who require referring to them. The first step in analyzing a system of objects with which users act together is t

    		•