Subphylum uniramia, Biology

Subphylum Uniramia

Uniramia, the largest subphylum of phylum Arthropods includes myriapods and insects. Due to the unbranched nature of the appendages of its members, the subphylum is designated Uniramia, as against those of crustaceans and primitive chelicerates which are branched and hence biramous. The uniramians have mandibles that are non-jointed, unbranched appendages without any palps; there have just only a single pair of antennae which correspond to the second cephalic segment (second antennae). Uniramians comprising taken to terrestrial mode of life, have developed trachea as gas exchanging organs; hence the subphylum is also termed as Tracheata. Malpighian tubules are the excretory organs. Uniramia involves over a million species of arthropods, of which nearly a million species are insects. About 10,500 species belong to four other classes Chilopoda, Diplopoda, Pauropoda and Symplyla. These latter four groups are collectively termed as myriapods arthropods.

Posted Date: 2/4/2013 12:35:40 AM | Location : United States







Related Discussions:- Subphylum uniramia, Assignment Help, Ask Question on Subphylum uniramia, Get Answer, Expert's Help, Subphylum uniramia Discussions

Write discussion on Subphylum uniramia
Your posts are moderated
Related Questions
Hydrocele A hydrocele is a painless water-filled cyst found in front of the testis.It is brightly translucent and cannot be emptied by pressure of a 'flap valve' at its jun

Which one of the following statements about morula in humans is correct? 1. It has almost equal quantity of cytoplasm as an uncleaved zygote but much more DNA 2. It has far l

What is the action mechanism of the antiretroviral drugs called protease inhibitors which are used against HIV infection? Protease inhibitors are some of the antiretroviral dru

Quantitative changes The quantitative changes in the availability of the active biomolecules occur in order to compensate for the loss of efficiency of the system caused by th

Define Absorption, Storage and Elimination of ascorbic acid? Ascorbic acid is rapidly absorbed from the intestines primarily by active transport.  Simple diffusion or carrier-m

What is the MN blood system? What is the pattern of genetic inheritance of the MN blood system? A MN blood system is a third (in addition to the ABO and the Rh) system of blood

what are the origin, morphology, active constituents, uses and market preparation of tanco beans ?

What is Bidirectional Glenn (BDG) without Cardio Pulmonary Bypass Surgical approach is through median sternotomy. If there is only a single superior vena cava some surgeons pre

Do the genes of the X and Y chromosomes determine only sex characteristics? Moreover sex genes the sex chromosomes have also autosomal genes, genes that codify several proteins

Explain about the Stilbenes? Stilbenes contain 3 phenyl compounds connected by a 2-carbon methylene bridge and occur in nature in restricted distribution. In plants, they act a