Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Subphylum Crustacea
Crustacea are mainly aquatic arthropods with gills for respiration. Cephalothorax has usually a carapace; appendages biramous but modified for several functions. Head has a pair of antennules, it pair of mandibles, it pair of antennae, and two pairs of maxillae. Development with a nauplius stage, but this map be not present in higher forms. Crustacea involves arthropods most of that have an aquatic existence. The group abounds in species diversity and biomass.
Figure: A generalised Crustacean
It involves crabs, shrimps, lobsters, crayfish, woodlice etc. even though largely aquatic, there are some semi-terrestrial and terrestrial species. Their success on land is not significant. Let us in brief look into the structural peculiarities of crustaceans. The body of crustaceans is categorized into three regions, head, thorax and abdomen. The head and thoracic segments may be fused to make the cephalothorax. The thorax and abdomen may together form a trunk in some forms. The thoracic segments are covered through a dorsal shield known as carapace. The carapace is a posteriorly directed fold of the body wall of the head and fused along with varying number of segments behind it. Carapace may overhang the sides of the body to some extent or in a few cases it may enclose the whole body.
Alterations occurring in milk and milk products In the dairy industry, milk is commonly given heat treatment for a wide variety of purposes. Depending on the heating temperatur
Q. What is the difference between carriers of HIV and AIDS patients? A person be able to be a carrier of the HIV without necessarily being affected by the immunodeficiency synd
Procedures for diagnosis Epidemiological data: The epidemiological information with regard to the history, symptoms, morbidity, mortality, seasonality, age, sex, breed and spe
Q. What are the kinds of leukocytes and how are they classified into granulocytes and agranulocytes? The kinds of lymphocytes are leukocytes, neutrophils, monocytes, basophils
Eutrophication - Effect on Water Bodies Moderate quantities of sewage decay naturally in a water body and water gets purified after some time. But the problem arises when the
Q. What is compensation point? What is the inference of the compensation point for the plant growth? The photic compensation point is the photic energy intensity under which ae
What is Cellular grade? Explain in brief. Organisms with this kind of cellular organization are referred to as the parazoan. They have distinct cells which function independent
Anticoagulation in Prosthetic Valves The usual anticoagulants used are: (I) Warfarin sodium, and (2) Acitrorn (coumarin derivative). In patients who had thromboembolism
What is an Erlenmeyer flask and how is it used? It is same to a beaker, except that it gets narrower at the top. It is use to hold liquids and do reactions in it.
It is immune difficult mediated hypersensitivity. Typical manifestations contain rheumatoid arthritis, serum sickness, necrotizing etc.
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd