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!
Metazoa
In the two kingdom classification, the unicellular 'animals' used to be clubbed together under a single phylum Protozoa that constituted sub-kingdom - Protozoa. The rest of the animals, all multicellular, were grouped under the sub-kingdom Metazoa under various phyla (the corresponding grouping for plants was Protophyta and Metaphyta). However, under the present concept of Five Kingdom Classification, this grouping has no relevance. Still, we often continue to use the term Metazoa to refer to the Animalia of the five kingdom classification. In this we start with an explanation of the levels of body organization in animals and the basic animal body plan. However, diverse the different invertebrates and vertebrates may appear to the eye, it is possible to group them in four master body plans.
These are the unicellular plan, the cell aggregate plan, blind sac plan and tube within a tube plan. The protozoan fall into the first category and the rest three structural plans are seen in the metazoans. We next list out the characteristic features of metazoans. We shall also discuss those features that are considered of fundamental importance for describing and understanding the structure and classification of any animal. These characters are:
Q Are bacteria the only prokaryotic beings? Prokaryotic beings are classified into two big groups: bacteria and archaebacteria (this last also known as eubacteria). Compared
what is the function of dna primer
FLUORIDE It is mostly available in drinking water. Fluoride is essential for the formation of enamel of the teeth. Deficiency of fluoride causes weakness of enamel.
How many ATP molecules are made after glycolysis? Glycolysis is a process same to glucose degradation in fermentation. It forms (final balance) two molecules of ATP for each br
FAT SOLUBLE VITAMINS Vitamin A Vitamin A may be of most practical importance in cattle feed. Vitamin A is essential for normal growth, reproduction, maintenance of epithel
Zinc deficiency Zinc is essential for several physiological functions in the body such as protein synthesis, carbohydrate and nucleic acid metabolism, and foetal growth. The de
What are the structures that participate in the human auditory sensitivity? The structures of the human auditory sensitivity are the ears (external, middle and internal), the
Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4
Other Complications of Prosthetic Valves : One of the dreaded complications of mitral valve replacement is ventricular rupture. It is difficult to manage and so it is better avoi
In unilocular ovary with a single ovule the placentation is : 1. Marginal 2. Basal 3. Free Central 4. Axile Basal
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: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd