Invertebrates Earth? Flatworm Sponge Cnidarian Echinoderm. tentacles? Starfish sponges InsectsJellyfish. 10. Which of the following worms is not a parasite? Tapeworm http://www.edhelper.com/AnimalReadingComprehension_99_1.html
Extractions: Invertebrates With over 2 million known animal species on Earth, 98% of them are invertebrates. Invertebrates are animals that don't have backbones. They live in a variety of environments, from hot and unbearable deserts to frigid and equally unbearable polar regions. They also come in an assortment of shapes and colors. To better understand invertebrates, scientists group them into eight major categories. Here are the categories and a fact or two about each category: Arthropods are invertebrates with hard outer shells (exoskeletons), with jointed legs, and with segmented bodies. Since about 75% of all animal species are arthropods, they represent the largest invertebrate group. Insects (such as butterflies, fleas, and beetles), myriapods (such as centipedes and millipedes), crustaceans (such as crabs, pill woodlice, and lobsters), arachnids (such as spiders, scorpions, and ticks), and horseshoe crabs are all examples of arthropods. Sponges are the simplest of all animals. Inhabiting mostly oceans but occasionally freshwater, they are headless and nerveless. As their movement is very difficult to detect, and they always attach to rocks, sponges were once thought to be aquatic plants! Sponges feed through a filter system. Thousands of pores covering the outside of a sponge pump water into the sponge's body. Collar cells lining the inside of the sponge sort out planktons or other microorganisms from the water. Once food particles are trapped and digested by collar cells, sponges expel the water through an opening at the top of the sponge.
Sponges And Unsegmented Worms Chapter 26, Page 554 sponges and Unsegmented worms Chapter 26, page 554 261 Introduction to the Animal Kingdom What is an Animal? Cell Specialization and Division of Labor What Animals must do to Survive Feeding Function in spongesHow sponges Fit into the World26-3 CnidariansWhat is a Cnidarian?Medusa http://www.nebo.edu/sjhs/BIOWORK/Ntb26.PDF
Paleobiology first multicelled animals (metazoa) evolved over 600 million years ago and canbe grouped into three categories sponge-like animals, cnidarians, and worms. http://www.fossilmuseum.net/Paleobiology/Paleobiology_Topics.htm
Extractions: Archaeocyaths Stromatolites Stromatolites are layered mounds, columns, and sheets found in the rock. They were originally built by the growth of layer upon layer of cyanobacteria, a single-celled photosynthesizing microbe growing on a sea floor. Cyanobacteria are prokaryotic cells (the simplest form of modern carbon-based life) that lack a DNA-containing nucleus. This simple organism was the only life on Earth for some 2 billion years, and dominated life on earth between 1 and 2 billion years ago. Though uncommon, extant stromatolites are found in a few places such as Shark Bay, Australia; the salinity of the water is very high in this bay, such that the only life that can survive is cyanobacteria. The prototypical structures are formed when the bacteria precipitate or trap and bind layers of sediment to make accretionary formations that present in different forms, including domes, cones and complex branching configurations. Structures sizes are highly variable from twig size to Mack truck size. Especially when polished, stromatolite can be most beautiful. Yet, interesting
Multi-celled Animals In general, sponges have opentopped, sack-like bodies which are fixed The cnidariansinclude corals, sea anemones, and jellyfish.Their basic body plan worms. http://geol.queensu.ca/museum/exhibits/oldanim/oldanim.html
Extractions: The term "multi-celled" when applied to a plant or animal means that the organism is made up of several different cell types. The first multi-celled animals (metazoa) evolved over 600 million years ago. Primitive metazoa can be grouped in three basic categories: sponge-like animals, cnidarians, and worms. The sponges, and cnidarians (corals and sea anemones), are the most primitive with about 11 specialized cell types. Worms and higher metazoa have approximately 55 specialized cells. Sponge image courtesy of Smithsonian Institute Sponges Sponges are the simplest grade of multi-celled animals. In general, sponges have open-topped, sack-like bodies which are fixed to the sea floor. Water is pulled through the body, and food is filtered out. Cnidarians The cnidarians include corals, sea anemones, and jellyfish.Their basic body plan is also a sack-like form, but at one end there is a mouth which can be opened and closed, and tentacles which direct food to the mouth. Worm image courtesy of Ambros Lab, Dartmouth College Worms Worms are the most advanced grade of simple metazoan, and it is this body plan from which all higher animals evolved. Worms have a fluid-filled cavity called a coelom inside the body and variations of this cavity can be seen in all higher animals. In many animals, it has become the sack which holds the internal organs.
Marinelife In The Aegean - Turkey - Glossary - TR irregular or unequal, used to describe some animals such as sponges. Cnidarian, cnidarians(pronounced cnidarians) are flower like in appearance with tentacles http://marine.itgo.com/marinegloss.html
Extractions: aegean CLICK BELOW TO GO TO THE ALPHABETICAL SECTION OF THE GLOSSARY A B C D ... I J K L M N O P Q R S T U ... V W X Y Z CLICK ON THE REQUIRED SECTION BELOW TO RETURN TO MARINE LIFE PAGES Marine Life Index Algae Bivalves Cnidarians ... Worms A bdomen A group of up ten segments behind the thorax of crustaceans which sometimes have appendages. Adult A fully developed and mature individual, capable of breeding but not necessarily doing so until social and/or ecological conditions allow. Algae Very primitive aquatic plants. Annelid A ringed or segmented worm. Antennae The second pair of sensory appendages of crustaceans , usually long and slender. Antenules The first pair of head appendages of crustaceans Anterior More to the front.
Extractions: Request A Brochure Tropical Marine Biology Curriculum Course Description: The biological and the physical processes interacting with tropical marine organisms including coral reefs, mangroves, and birds, will be introduced and discussed in detail. Particular emphasis will be placed on the integration of ecological processes with the biodiversity and richness of tropical habitats. An introduction to the biology and identification of tropical coral reef organisms will prepare students for underwater research activities to study the ecological processes involved in maintaining high species diversity. A series of evening presentations, discussions and debates will address reef management issues and students will conduct projects to explore areas of interest in more detail. This is a field-oriented course designed to introduce students to the techniques used in the study of biology, ecology, and physiology of subtidal organisms. Current underwater research methods are learned and implemented in underwater exercises.
Invertebrates :: spiny structures made of either a chalky or a glasslike substance that form the skeletonsof many sponges Asexual reproduction All hail the spineless worms . http://www.freewebs.com/8phyla/porifera.htm
Extractions: I see you've decided to come to the Porifera link. The only species in Porifera is a sponge. Most sponges live in the ocean, but just to be contrary a family called by the strange name of Spongillidae can live in freshwater too. They eat small crabs and plankton, and how they do this is discussed in the next paragraph. Sadly, a sponge is sessile. It cannot move on its own, and the farthest that it can be moved in a day (unless another animal carries it away, of course) is 0.4 centimeters. Sponges rely on the water that they live in for almost everything that they need to stay alive. They ingest food when the water washes it in, and take in oxygen through the water too. Water is also crucial to the sponge's circulation. After washing the food and gases in, the water then sweeps out everything except the nutrients that the sponge retains, including wastes, or excretion. Lastly, the sponge can reproduce either asexually, through budding (budding is when the parent sponge grows a small attachment off its own body, and then the attachment breaks off and develops into a new sponge), or sexually. Bizarre words:
STUDY GUIDE/REVIEW FOR EAR 7: FIRST HOURLY or Metazoans Ediacaran animals sponges and Archaeocyathids symmetry, filter feedersCnidarians jellyfish, corals feeders Annelids - segmented worms, like the http://www.es.ucsc.edu/~pkoch/lectures/exam1review.html
Extractions: STUDY GUIDE/REVIEW FOR EAR 7: FIRST HOURLY The test will include a mixture of multiple choice, fill-in-the-blank, and short answer questions (one word or a phrase). Expect no about 45 questions. Focus your studying on major issues discussed in the lectures. Use the readings to clarify the issues discussed in class. I will not ask questions about topics in the readings that were not covered in class. No issues that came up exclusively in the discussion sections will be covered on the test. Major topics covered in lecture: Geologic time
--Chapt. 23 And 24 -- Animals a. round worms b. tape worms c. insects d containing food) that pass through a spongeare created by a cnidarians have all of the following structures except a http://www.valdosta.edu/~bergstrm/audesrk22.htm
Sponges_cnidarians_worms_mollusks Web links. Intro to cnidarians. flatworms. nematodes. annelidas. mollusks. hydra. corals. sea anemones. jellyfish. Created by. Mr. Crow. Objective Students will utilize the internet to explore. the http://www.geocities.com/mrcrowwms/sponges_cnidarians_worms_mollusks
Extractions: You find the over 60 photos of marine worms on two pages Polychaete worms (Annelida) 28 photos Polyclad and Acoel flatworms - over 40 photos und To look at the enlarged photo please click on the thumb nail photo. Some photos have explanatory texts. All photos taken in the Indo-Pacific. More links about marine worms Was bietet Starfish (Kelch-, Platt-, Schnur-, Spritz-, Igel- und Ringelwürmer) Polynoid worms - Polynoidae - Schuppenwurm Polynoid worm - Gastrolepidia clavigera - Schuppenwurm Fire Worm - Chloeia parva - Feuerwurm Fire Worm - Hermione hystrix - Feuerwurm Fire Worm - Pherecardia sp. - Feuerwurm Nemertea, Phorona, Hemichordata Tubular deposit from Acron worm - Hemichordata - Sand-Ausscheidungen des Acron Wurms Overview Marine Plants Forams Sponges Cnidarians ... Echinoderms - Chordates ( Ascidians ) - Vertebrates ( Fishes Reptiles , Mammals etc.) - Unidentified reef animals Marine Pflanzen Nesseltiere Weichtiere ... Moostierchen - Chordatiere ( Seescheiden ) - Wirbeltiere ( Fische Reptilien Nicht identifizierte Tiere I identified each animal to my best knowledge, but mistakes are possible. Please
The Biology Of Animals Video Series to provide a colorful overview of sponge biology with an Obelia illustrates a twostagecnidarian life cycle upto-date information on round worms including a http://ebiomedia.com/prod/BOanimals.html
Extractions: Here, presented with revealing footage of the organisms, are the great lines of animal life that began around 600 million years ago. Each program treats evolution, phylum characteristics, major classes, larval development, and the natural history of easily-found organisms appropriate for classroom study. Download short guides for seven programs - PDF file, 164K (other program guides below) Read or link to reviews of these programs NEW Details The Biology of Sponges Phylum Porifera, the simplest of the animal phyla, is an ideal group to begin studies of the animal kingdom. With an estimated 15,000 species diversity, sponges play important roles in aquatic ecosystems as bacterial filters. This program uses underwater photography, microscopy, animation, SEM, and timelapse microscopy to provide a colorful overview of sponge biology with an emphasis on structure, taxonomy, ecology and evolution. Download . (15 minutes - #BO125) The Biology of Cnidarians The program begins with an in-depth study of Hydra ; its feeding methods, stinging cells, reproduction by budding, and its sex life.
Extractions: INDEX Mollusca Cowrie Shell Giant Tun Shell ... Worms INTRODUCTION L ook into any of the tour company holiday brochures featuring the coastal resorts of Turkey and you will think that the clear vivid turquoise waters shown in the photographs are less than real. It is not until you have your first glimpse of the sea as you approach your resort that you appreciate that the colours are realistic. The waters of the Central and Southern Aegean Coast and the Turquoise Coast are relatively low in Phyphotoplankton, the first link in the marine food chain, and the reason for the exceptional clarity of the water. It is a mystery as to why the water is such a brilliant turquoise colour along this part of the Turkish coast.
Cancun Heat The Ultimate Travel Guide For Cancun Playa Del The travel guide where you will find the best information about Cancun and Playa del Carmen Our travel maps will lead you to archeological sites and hiking http://cancunheat.com/Wildlife/default.aspx
