into about 35 phyla (Solomon et al.‚ 2011). Out of these‚ phylum Annelidia composed of about 15‚000 species which is further divided into 3 main classes – the Polychaeta (marine worms)‚ the Oligochaeta (earthworms and freshwater worms) and the Hirudinida (leeches). On the other hand‚ phylum Arthropoda is the largest animal phylum which is composed of millions of species with more than a million being described (Solomon et al.‚ 2011). This phylum is further divided into five major subgroups – subphylum
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a Bio 20 Final Review SA Phylum | Example | Characteristics | /36 | | | Porifera | Glass Sponge | No true tissue‚ use collar cells No movement as adult | Cnidaria | Jellyfish | Polyp or Medusa Nerve net | Platyhelminthes | Fluke | Nerve cells that act as a brain Live in bodies | Nematoda | Hookworm | Taper at both ends False coelom‚ parasitic | Annelida | Earthworm or Leech | Segmentation Hydro skeleton | Mollusca | Octopus or Clam | Mantle‚
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SCI115 Introduction to Biology Name: Julie Maxwell Classifying Arthropods Virtual lab (Week 8) Go to the following website for completion: http://www.mhhe.com/biosci/genbio/virtual_labs/BL_18/BL_18.html Upon completion of the Classifying Arthropods Virtual Lab‚ please answer the following questions thoroughly using complete sentences and proper grammar and spelling. Data Table | Body Sections(1‚2‚3‚ or >3) | Walking Legs (6‚8 or >8) | Other Appendages | Antennae(0‚2 or 4) | Claws Present
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Phylum Porifera  Basic Characteristics No definine symmetry Bodies are multicellular‚ with few tissue and no organs. The cells and tissues surround a water filled space but there is no body cavity. Has no nervous system Has a larval stage. Are all filter feeders. Sponges are among the oldest animals‚ being discovered about 500 million years ago! Phylum Cnidaria JellyFish  Basic Characteristics Live in both fresh water‚ and salt water. Radial Symmetry; typically quadramous
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two-kingdom system of classification? Q 3 Who proposed three-kingdom classification? Q 4 What is meant by triploblastic? Q 5 What is haemocoel ? Q 6 Name the person who has given the five-kingdom classification. Q 7 Which is the largest phylum of animal kingdom? Q 8 What is the function of canal system in sponges? Q 9 What are Gymnosperms? Q 10 What is the purpose of classification? Q 11 What do you mean by evolution? Q 12 What are the bases due to which plants and animals
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Animals like hydra that belong to the phylum Cnidarian have two germ layer. Cnidarians can be in two forms‚ polyp and medusa and the hydra is in the form of polyp. The gastrovascular cavity that is joined to the mouth of the cnidarian acts in digestion‚ gas exchange and also acts as the hydrostatic
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Characteristics of the Phylum Arthropoda The segmented bodies are arranged into regions‚ called tagmata (e.g.‚ head‚ thorax‚ abdomen). The paired appendages (e.g.‚ legs‚ antennae) are jointed. They posses a chitinous exoskeletion that must be shed during growth. They have bilateral symmetry. The nervous system is dorsal (belly) and the circulatory system is open and ventral (back). Arthropod Groups (taxa) The arthropods are divided into two large groups that exist today: The Chelicerates
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2.) A Brief List of 21 Animal Phyla A. Invertebrate Phyla Parazoa: Simple animals without a digestive cavity. 1. Phylum Porifera (Sponges) Simple multicellular animals that spend their lives anchored to a rock or ocean bottom; they are mostly marine but some species live in fresh water; sponges have radial symmetry with a cylindrical‚ globose or irregular body containing an internal skeleton of minute spicules made of calcium carbonate‚ silica‚ or a fibrous collagen protein called spongin; the
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Opisthokonta: Metazoa II: Eumetazoa: Bilateria: Protostomia: Ecdysozoa Objectives: • Know the key features of the Phylum Nematoda. Know how they relate to other metazoan phyla. • List the key characteristics of the Phylum Arthropoda. Identify examples. List the four subphyla and their key distinguishing features. Identify examples of the subphyla Chelicerata‚ Crustacea‚ Myriapoda‚ and Hexapoda. • Be able to identify the different structures on these organisms and understand their function. • Understand
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length of one-half inches and a wing span of 0.0079 inches. As all insects‚ the wasp has bilateral symmetry‚ an exoskeleton‚ two eyes‚ six legs‚ and three body parts. It has two antenna and 2 wings. The wasp is part of the Animalia Kingdom‚ Arthropoda Phylum & Insecta Class. The life cycle of a wasp begins with an egg and ends sometime between 12 days and 12 months later as an adult wasp. The queen wasp lays eggs into the cell of the nest. Each egg will hatch in its own cell becoming larva
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