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Metazoan Branches
The Kingdom Animalia comprises all the multicellular animals (metazoans). These are divided into three branches:
The Mesozoa comprise a tiny single phylum (Phylum Mesozoa); the Parazoa comprise two phyla a tiny single phylum Placozoa and the rest make up the phylum Porifera comprising the sponges. Most of the metazoans come under the major branch Eumetazoa You must note that the cellular layers of Porifera (sponges) are not homologous to the germ layers of Eumetazoa. Their developmental pattern is also quite different from that of the Eumetazoa. The Parazoa are regarded as an early evolutionary side branch of the animal kingdom, which did not give rise to any other group of animals.
Describe Class Ophiuroidea in general way? Brittle stars have a central disc with five long, thin, flexible arms that can be detached from the body at will in times of danger.
Draw a diagram of the longitudinal section of a mature anatropous ovule and label any ten parts in it.
Define Amylopectin - carbohydrates? Amylopectin differs from amylose in being highly branched. Short side chains of about 30 glucose units are attached with α (1-6) linkages ap
Conventional CABG on Cardiopulmonary Bypass Chest is opened by midline incision and median sternotomy. Simultaneously saphenous vein or radial artery is harvested. 'T
Explain Preparation of burette for Estimation of Reducing Sugar by Fehling Soxhlet? Preparation of burette - Take a 50 ml burette. 1. Fix the burette into the burette holder
what is comretun
Does every gene mutation cause alteration in the protein the gene normally codifies? Not each gene mutation causes alteration in the composition of the protein the gene codifie
Prophase This is the first and longest phase of mitosis .At its beginning all 10 nm segments of chromatids (= chromonemata) of the duplicated chromatin fibres of interph
Tests of shelled amoebas are made from a variety of substances including sand grains, chitin and substrate, calcium salts, and even silica. These shells still accumulate in ocean d
Q. How is respiration performed by the larva of amphibians? The larva of amphibians has exclusively branchial respiration this is one of the reasons why it depends on water to
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