Locomotion in mollusca, Biology

Assignment Help:

Locomotion in Mollusca

The major locomotor organ in Mollusca is the foot, which is a characteristic feature of these animals. In its simplest form the foot is a flit ventral sole that is best suited to secure attachment and progression of body by creeping. As coelom extremely is reduced, it is not significant as a hydrostatic skeleton in this group of animals. Conversely, the foot is muscular and is provided with cilia and mucus cells. With this, the hydrostatic properties of blood system make it an excellent organ of locomotion. In bivalves, shell as well plays an important role in locomotion. The foot as well exhibits a wide diversity of forms to serve like an organ not only for crawling, but for burrowing, leaping and swimming as well. These activities are related to the environment and mode of living of the Mollusca. Let us see the various modifications of foot associated with the locomotor function in different groups of Mollusca.


Related Discussions:- Locomotion in mollusca

Class Pisces, need different types of information about fishes and their pi...

need different types of information about fishes and their pictures

What are two specific actions in this, The major ecological imbalance on Ea...

The major ecological imbalance on Earth is between the human species and the rest of Earth's biota. What are two specific actions we could do to achieve a balance (for example, rec

What is passive transport, What is Passive Transport? Passive Transpor...

What is Passive Transport? Passive Transport :  Specialized proteins called permeases also move specific substances across the cell membrane in a process called carrier transp

Stages of research process, Stages of Research Process: Planning Stage...

Stages of Research Process: Planning Stage The planning stage of research process  includes a  series of  interdependent steps consisting of 1)  conceptualizatioq of  the r

Circulatory system in cockroach, CIRCUL A T O R Y SYSTEM IN COCKROACH ...

CIRCUL A T O R Y SYSTEM IN COCKROACH Type is open or lacunar. i.e. b.v. absent. Organs are dipped in haemolymph. 1 .      HAEMOLYMPH - Blood and lymph are mixed.

Organisation of nervous system, Organisation of Nervous System Nervou...

Organisation of Nervous System Nervous systems are composed of nerve cells or neurons and glial cells. In the latter half of the 19 th century it was strongly believed that

Fragmentation - types of asexual reproduction, Fragmentation - Types of Ase...

Fragmentation - Types of Asexual Reproduction Fragmentation is a phenomenon where parent animal spontaneously (on its own accord) splits into two or more fragments. Each one o

Explain genotypical and phenotypical forms, In the F2 generation of hybridi...

In the F2 generation of hybridization for a given trait conditioned by a pair of alleles T and t, according to Mendel's first law what are the genotypes of each phenotypical form?

Hounsfield units of computed tomograpy scan, Hounsfield Units: It is an...

Hounsfield Units: It is an arbitrary scale of gray values for CT. It is an indicator of bone density: - Trabecular bone has a range of 200 - Cortical bone has a range

Cloning protocol, Sally Subcloner wants to clone a fragment into pUC19 (Map...

Sally Subcloner wants to clone a fragment into pUC19 (Map above – From New England Biolabs). Her fragment was a protein coding gene of 2.7 kb, and had XhoI sites on either end (and

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd