Describe class diplopoda and chilopoda in detail, Biology

Assignment Help:

Describe Class Diplopoda and Chilopoda in detail?

Members of the Subphylum Crustacea and the Subphylum Uniramia have one major characteristic in common. Both groups have biting jaws, or mandibles. Mandibles are actually modified appendages. Usually the first and/or second pair of appendages anterior to the mandibles are antennae, which are also modified appendages.

Features that distinguish Crustaceans from the other arthropods are their hard exoskeletons, three pairs of mouthparts, two pairs of antennae, and walking legs. The exoskeletons of Crustaceans are impregnated with calcium carbonate (essentially limestone), which makes them very hard. Their mouthparts are appendages that have become modified into jaws for chewing. Their antennae are also modified appendages with sensory hairs, which are used for feeling, and in some cases, filter feeding. Crustacean bodies are characteristically divided into 3 segments: head, thorax, and abdomen. However, in many crustaceans, the head and thorax are fused together into a body unit referred to as a cephalothorax, as seen in crayfish, shrimp, crabs, and lobsters.

Barnacles are sessile crustaceans, which means they live attached to a fixed substrate. The substrate can vary widely, and in fact, could be anything that is submerged most of the time. For instance, barnacles not lonly live on rocks and other attached organisms, but they are found living on mooring ropes, boat hulls, docks, and even whales!

Insects, millipedes, and centipedes comprise the Subphylum Uniramia, which is a very, very large group. Although there are many different species of animals with single branched appendages, they all can be grouped into one of three separate and distinct Classes.

 


Related Discussions:- Describe class diplopoda and chilopoda in detail

Explain factors that alter the speed of enzymatic recations, What are the m...

What are the main factors that alter the speed of enzymatic reactions? The major factors that change the speed of enzymatic reactions are temperature, pH and substrate concentr

Define functions of copper, Define Functions of Copper? Copper serves a...

Define Functions of Copper? Copper serves as a co-factor, as well as, an allosteric component of enzymes. In many enzymes copper functions as an intermediate in electrno transf

Demographic transition, Demographic Transition As we saw earlier, deat...

Demographic Transition As we saw earlier, death rates and birth rates have been nearly equal throughout much of human history. However, in Western Europe, death rates began to

State the foot examination of a diabetic patient, State the Foot examinatio...

State the Foot examination of a diabetic patient Foot examination of a diabetic patient is very crucial in early detection and proper treatment of foot problems.  In every fol

Show the process of construction of keys, Q. Show the process of Constructi...

Q. Show the process of Construction of Keys? Keys are constructed using contrasting characters. The possible names in the key are divided into smaller and smaller groups. Each

Mollusca, 5 classification of mollusco

5 classification of mollusco

Nerve impulse, NE R VE IMPULSE (IT'S GENERATION) - It is an electr...

NE R VE IMPULSE (IT'S GENERATION) - It is an electro chemical phenomenon manifested through ionic movement across cell membrane. It was discovered by A. L. Hodykin & A

What are zymogens, What are zymogens? Zymogens, or proenzymes, are enzy...

What are zymogens? Zymogens, or proenzymes, are enzymes secreted in inactive form. Under some conditions a zymogen shifts to the active form of the enzyme. Zymogen secretions i

Pathophysiology, Case scenario Mr Kit Lee, a 28-year-old unrestrained dr...

Case scenario Mr Kit Lee, a 28-year-old unrestrained driver of a utility, was travelling on a highway at 100kph and swerved to miss road debris. He lost control and struck a tre

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