Phylum

ANIMAL BIODIVERSITY Comparison among the following phylums: 1. Phylum Kinorhyncha 2. Phylum Priapulida 3. Phylum Nematomorpha 4. Phylum Loricifera Phylum is a taxonomic division on the base of different characters of all species present in biosphere. Species with similar characters are placed in a single phylum.These phyla have a large number of species but these species are very small in size. And moreover, all species of these phyla have not been fully studied. Here, the comparison of these phyla

1) Discuss the basic body plan for organisms in phylum porifera. In your answer, be sure to also explain why sponges are considered multicellular organisms even though they do not have any tissues. You should also describe the key cell types that the sponges might possess, and explain the various modes of sponge reproduction. If poriferans possess any organs, you should also describe these organs and how they function. Finally, your answer should also include a discussion of the various taxonomic

Animal Phylum Evolution In this research paper, I’m going to be discussing the evolution of animals and how things have changed to make them more complex throughout history. I’m going to discuss what types of phyla there are and how their body systems work. First, I’m going to discuss is the phyla Protists. Some protists are autotrophs, a photosynthetic group of phyla referred to as the algae. Some protists are heterotrophs. Heterotrophs get their energy by consuming other organisms. Protists

Introduction: Biodiversity, or biological diversity, is a term first coined in 1985 by Walter G. Rosen concerning the number of species in a particular habitat and revolved around the idea that diversity cannot solely be understood through numbers (Maclaurin and Sterelny, 2012). However, before 1985 biodiversity was related to concepts of “genetic diversity and ecological diversity”. This allowed to further define ecological diversity with species richness as “the number of species in a community

must be conserved and in that the networks for alternative appendage development do not exist. Variations in parts of the developmental pathways responsible for segmentation and appendage patterning explain the differences in body plan across the phylum. However, certain portions of the pathway must be conserved, resulting in body segments with paired appendages in all arthropods. Research on the developmental pathways that control segmentation in arthropods has shown that gene expression is more

Academic Council 25/05/2011 Item No. 4.59 UNIVERSITY OF MUMBAI Syllabus for the F.Y.B.Sc. Program: B.Sc. Course : Zoology (Credit Based Semester and Grading System with effect from the academic year 2011–2012) 1    F.Y.B.Sc. Zoology Syllabus Restructured for Credit Based and Grading System To be implemented from the Academic year 2010-2011 SEMESTER I Course Code UNIT I USZO101 II III I USZO102 II III USZO P1 TOPICS Diversity of Animal Kingdom I Life processes I Ecology Molecular basis of life

in their embryonic development when compared to Protostomes and it is suggested that these two groups split at the time of the Cambrian explosion, a brief time in history that blossomed into the vast array of organisms found today. Eventually, the phylum Echinodermata developed and under it, a set of classes arose. Archinidea was one of these classes, and later became commonly known as the starfish. They are radially symmetrical and contain some of the characteristics that set Echinodermata apart

Woodlice are members of the Arthropod phylum and are known as terrestrial isopods, a group which has a segmented body with jointed limbs attached to a rigid exoskeleton (Paoletti and Hassall, 1999; Sutton, 2013). They tend to be between 1.2mm and 30mm in size and are a dark brown or slatey colour (Paoletti and Hassall, 1999; Sutton, 2013). Woodlice are soil detritivores and are important decomposers of leaf litter as they utilise around 10% of annual leaf litter, which potentially can increase the

Mentioned before is that they possess an exoskeleton. The exoskeleton is an amazing feature that gives shape and support to the body, as well as provides protection from enemies and minimizes injuries. An exoskeleton also decreases the loss of body fluids, and assures advantage to muscles for strength as well as agility in movement. It is able to resist physical and chemical attack. The exoskeleton of an arthropod can either be as flexible as rubber or as hard and rigid as some metals. The second

Phylum Hemichordata Phylum Hemichordata are marine vertebrates that live in shallow water. Hemichordates have two significant features with chordates which are pharyngeal gill slits and dorsal nerve cords. The name "hemichordate" means "half chordate," and hemichordates share some of the typical chordate characteristics. There are branchial openings, or "gill slits," that open into the pharynx; there is a rudimentary structure in the collar region, the stomochord, that is similar to a notochord;