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Topic: Phylum biology


  
  NationMaster - Encyclopedia: Hydrozoa   (Site not responding. Last check: )
Phylum (plural: phyla) is a taxon used in the classification of animals, adopted from the Greek phylai the clan-based voting groups in Greek city-states.
The term morphology in biology refers to the outward appearance (shape, structure, colour, pattern) of an organism or taxon and its component parts.
In biology, a medusa (also known as a hydromedusa) is a form of cnidarian in which the body is shortened on its principal axis and broadened, sometimes greatly, in contrast with the hydroid or polyp.
www.nationmaster.com /encyclopedia/Hydrozoa   (1345 words)

  
 Spartanburg SC | GoUpstate.com | Spartanburg Herald-Journal
In biological taxonomy, a phylum (Greek plural: phyla) is a taxon in the rank below kingdom and above class.
Although the International Code of Botanical Nomenclature allows the use of the term "Phylum" in reference to plants, the term "Division" is almost always used by botanists.
Many phyla are exclusively marine, and only one phylum is entirely absent from the world's oceans: the Onychophora or velvet worms.
www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=phylum_(biology)   (657 words)

  
 phylum - Search Results - MSN Encarta
Phylum, in biology, major category, or taxon, of organisms with a common design or organization.
Classification, in biology, identification, naming, and grouping of organisms into a formal system based on similarities such as internal and...
The classification of living organisms has been controversial throughout time, and these schemes are among those in use today.
encarta.msn.com /phylum.html   (136 words)

  
  New Jersey Scuba Diver - Marine Biology - Invertebrates - Overview   (Site not responding. Last check: )
Cnidaria is a phylum of invertebrate animals comprising the sea anemones, corals, jellyfish, and hydroids.
Annelida is a phylum of soft-bodied, bilaterally symmetrical, segmented animals, known as the segmented, or annelid, worms.
In some primitive members of the phylum the metameres are identical, or very similar to one another, each containing the same structures; in more advanced forms there is a tendency toward a consolidation of some segments and a restriction of certain organs to particular segments.
www.njscuba.net /biology/misc_ov_invertebrates.html   (3224 words)

  
  Phylum (biology) - Wikipedia, the free encyclopedia
Phylum (plural: phyla) is a taxon used in the classification of animals, adopted from the Greek phylai the clan-based voting groups in Greek city-states.
(Although the International Code of Botanical Nomenclature allows the use of the term "Phylum", the term "Division" is almost always used by botanists.) Phyla represent the largest generally accepted groupings of animals with certain evolutionary traits, although the phyla themselves may sometimes be grouped into superphyla (e.g.
Although many phyla are exclusively marine, only one phylum is entirely absent from the world's oceans: the Onychophora or velvet worms.
en.wikipedia.org /wiki/Phylum_(biology)   (210 words)

  
 Phylum - Wikipedia, the free encyclopedia
Phylum is one of the levels of scientific classification of organisms.
In linguistics the term phylum was introduced in comparative work and means "super-family" of languages possibly being related.
This is a disambiguation page, a list of pages that otherwise might share the same title.
en.wikipedia.org /wiki/Phylum   (102 words)

  
 Biology - Crystalinks
Biology has become such a vast research enterprise that it is not generally regarded as a single discipline, but as a number of clustered sub-disciplines.
For example, evolutionary biology leans heavily on techniques from molecular biology to determine DNA sequences, which assist in understanding the genetic variation of a population; and physiology borrows extensively from cell biology in describing the function of organ systems.Every living thing interacts with other organisms and its environment.
Molecular biology is the study of biology at a molecular level.
www.crystalinks.com /biologydefinition.html   (1996 words)

  
 Phylum Summary
Phylum is a taxon or group within the hierarchical system of taxonomy located between Kingdom and Class.
Phylum (plural: phyla) is a taxon used in the scientific classification of life.
Although the International Code of Botanical Nomenclature allows the use of the term "Phylum" in reference to plants, the term "Division" is almost always used by botanists.
www.bookrags.com /Phylum   (908 words)

  
 Chapter 39 Extended Lecture Outline
Understand the general organization and biology of a sponge, including reproduction and metabolism.
Understand the general organization of the phylum Platyhelminthes and how their various organ systems compare to those of the other "lower" invertebrates.
Understand the general organization of the phylum Nematoda and compare their systems to those of the acoelomate invertebrates.
www.fiu.edu /~pitzert/lec11-14.htm   (184 words)

  
 Biology – population biology - List of Items - MSN Encarta
Biology – population biology - List of Items - MSN Encarta
, in biology, major category, or taxon, of organisms with a common design or organization.
This design is shared by all members of the phylum,...
encarta.msn.com /refedlist_210043885_3.3/Phylum.html   (36 words)

  
 101 Taxonomy - www.101science.com
A phylum is part of the hierarchy of classification of organisms.
Classification, in biology, identification, naming, and grouping of organisms into a formal system based on similarities such as internal and external anatomy, physiological functions, genetic makeup, or evolutionary history.
Insects, which lack spinal cords, are classified in the phylum Arthropoda, the taxon that includes animals with jointed legs and a skeleton on the outside of the body.
www.101science.com /Taxonomy.htm   (3454 words)

  
 SparkNotes: SAT Subject Test: Biology: Classifying Life
For the SAT II Biology, you should know the basic characteristics of the organisms that belong in each of these kingdoms, and you should also be familiar with the names and features of the major phyla within each kingdom.
Brown algae of phylum Phaeophyta are all multicellular seaweeds, ranging in size from an inch to almost the length of a football field (the large varieties are called kelp).
Phylum Cnidaria includes all stinging marine organisms that exhibit radial symmetry, such as jellyfish, hydras, sea anemones, and coral.
www.sparknotes.com /testprep/books/sat2/biology/chapter8section2.rhtml   (3658 words)

  
 Animal Classification
Phylum Annelida The Segmented Worms University of Minnesota.
Phylum Annelida (segmented worms) University of Michigan Museum of Zoology.
Phylum Platyhelminthes (flatworms) University of Michigan Museum of Zoology.
www.trinity.wa.edu.au /plduffyrc/subjects/science/biology/animclass.htm   (593 words)

  
 Augsburg College Biology - Photo of Month -December 2002
The green algae (phylum Chlorophyta) are closely related to the green plants and in fact are considered by many biologists to be true plants.
In addition to many species of green macroalgae, this phylum also includes many microscopic species that live as single cells, or clusters or filaments of cells.
The red algae are yet another group in a separate phylum (phylum Rhodophyta).
www.augsburg.edu /biology/photoofmonth/redalgae.html   (863 words)

  
 Related WordNet synsets for SUMO concept Organism
(biology) genus from which the name of a family or subfamily is formed; it is not necessarily the most representative genus by often the largest or best known or earliest described
(biology) a taxonomic group that is a division of a species; usually arises as a consequence of geographical isolation within a species
(biology) belonging to or active during the night; "nocturnal animals are active at night"; "nocturnal plants have flowers that open at night and close by day"
virtual.cvut.cz /kifb/wordnet/_organism.html   (1856 words)

  
 Biology of Sponges video guide.
The phylum of sponges, Phylum Porifera, is entirely aquatic, with well over 98% of all sponge species found in marine environments, and a small percentage found in freshwater lakes and streams.
Biology students who investigate these geological features are likely to find ‘living paintings’ on the cave walls, formed by sponges or groups of sponges.
The Phylum Porifera is an important group to introduce to students of biology.
ebiomedia.com /prod/BOsponges.html   (2545 words)

  
 Phylum (biology) - Definition, explanation
Phylum (plural: phyla) is a taxon used in the classification of animals, adopted from the Greek phylai the clan-based voting groups in Greek city-states.
(Although the International Code of Botanical Nomenclature allows the use of the term "Phylum", the term "Division" is almost always used by botanists.) Phyla represent the largest generally accepted groupings of animals with certain evolutionary traits, although the phyla themselves may sometimes be grouped into superphyla (e.g.
Members of every phylum inhabit the world's oceans except one - the Onychophora or velvet worms.
www.calsky.com /lexikon/en/txt/p/ph/phylum__biology_.php   (202 words)

  
 Department of Biology, FACULTY OF SCIENCE
Microscopy and other experimental methods in cell biology: including light and electron and other forms of microscopy, use of isotopes as tracers, centrifugation and cell fractionation, X-ray diffraction and other methods in investigating macromolecular structures.
phylum PLATYHELMINTHES: characteristics of the free-living flatworms (Turbellaria) and parasitic flatworms (Trematoda and Cestoda)
phylum BRYOZOA: introduction to the lophophorate phyla and characteristics of the Bryozoa
home.um.edu.mt /biology/05b_descBSc1.html   (1591 words)

  
 M30.htm   (Site not responding. Last check: )
The phylum also provides some of the most familiar animals, such as snails, clams, mussels, squids, and octopus (which, like the arthropods, are well known because they're good to eat).
The phylum Mollusca also includes lesser known forms such as the chitons, tusk shells, solenogasters, among others.
There are only about 70 described living species of this class, which are small, worm-like molluscs that live buried head down in the sea floor.
www.meer.org /M30.htm   (767 words)

  
 BIO 5 PLANT BIOLOGY
All of the animals in the Phylum are aquatic.
However, unlike the sponges in which the cells are independent of one another, the cells of animals in the Cnidaria are organized into tissues.
The animals in the Phylum Cnidaria have radial symmetry.
www.csus.edu /indiv/r/reihmanm/cnidaria.htm   (970 words)

  
 Biological Diversity 7
Members of this phylum all have stinging cells that eject a barbed thread and possibly a toxin.
The phylum as a whole has adult bilateral symmetry and cephalization (the development of a head with sensory organs, in most members).
Biology of schistosomes and their hosts This website from the Natural History Museum provides details about the cause of schistosomiasis.
www.emc.maricopa.edu /faculty/farabee/BIOBK/BioBookDiversity_7.html   (5042 words)

  
 The Biology of Animals video series   (Site not responding. Last check: )
Phylum Porifera, the simplest of the animal phyla, is an ideal group to begin studies of the animal kingdom.
Phylum Annelida is made up of segmented worms divided into three classes: Oligochaetes (earth worms and aquatic worms such as Tubifex), Polychaetes (Nereis and thousands of other species that live in almost all marine habitats), and Leeches.
Phylum Chordata evolved in ancient seas over 510 million years ago as shown by fossils (Pikaia) discovered in the Burgess Shales.
www.ebiomedia.com /prod/BOanimals.html   (797 words)

  
 PaleoPublications Natural Sciences - Publications Biology Botany Ecology Paleobiology Zoology Entomology Herptology ...
Molecular Biology - the branch of biology that studies the structure and activity of macromolecules essential to life
Chordate Phylum - all the animals that have a backbone.
Protozoa Phylum - tiny, microscopic organisms that reproduce by splitting in half to become two new organisms.
www.paleopubs.com /naturalSciences.htm   (2023 words)

  
 The Natural World - Biology
Previously thought to be a hindrance in biology, biochemical "noise" - for example, the slight variations that occur in protein production - appears to play a key role in controlling and tuning biological processes...
Paradoxically, regenerating a limb or growing a spinal cord is dependent on the death of certain cells...
A worm-like creature from the depths of the North Atlantic has led to the establishment of a new phylum, a rare event considering most major categories were already thought to be known...
www.scienceagogo.com /news/natural_world_biology.shtml   (1345 words)

  
 Cnidaria
The mouth is surrounded by tentacles studded with microscopic stinging capsules known as nematocysts that are the agents of offense and defense.
Life cycles of the Hydrozoa are the most diverse in the phylum: although the polyp is the more conspicuous and persistent stage in most taxa, some lack the medusa phase, whereas others lack the polyp phase.
The cnida, or nematocyst, which is the sine qua non of the phylum, is secreted by the Golgi apparatus of a cell termed a cnidoblast (Watson 1988).
www.tolweb.org /tree?group=Cnidaria&contgroup=Animals   (2407 words)

  
 AP~Invertebrates
Phylum Cnidaria: cnidarians have radial symmetry, a gastrovascular cavity, and cnidocytes
Phylum Rotifera: rotifers have jaws and a crown of cilia
Phylum Mollusca: mollusks have a muscular foot, a visceral mass, and a mantle
www.jdenuno.com /APBiology/AP~Invert.htm   (704 words)

  
 Phylum (biology) - Wikipedia, the free encyclopedia   (Site not responding. Last check: )
Members of every phylum inhabit the world's oceans except one - the Onychophora or velvet worms.
American Heritage Dictionary (http://www.bartleby.com/61/54/P0275400.html): New Latin phylum, from Greek phūlon, class.
This page was last modified 01:18, 15 Jun 2005.
www.hackettstown.us /project/wikipedia/index.php/Phylum_(biology)   (248 words)

  
 Phylum Arthropoda
Phylum Arthropoda (arthro = joint; poda = foot) is the most numerous phylum of all living organisms, both in number of species and in number of individuals.
The body feature from which the phylum takes its name is the jointed appendages, which include antennae and mouthparts as well as walking legs.
It is thought that the early arthropod ancestors (descended from organisms that looked like marine worms or, later, Peripatus) looked sort of like a centipede: they had a number of body segments, each with a pair of jointed appendages.
biology.clc.uc.edu /courses/bio106/arthrpod.htm   (2157 words)

  
 Best of the Web - What's New in Science For 6/17/2005
Phylum Chordata - Examines the morphology, digestive, reproductive, respiratory and circulatory systems of the chordates.
Phylum Chordata Characteristics - Presents an overview of the features of the members of the phylum as well as the major subgroups.
Marine and Environmental Education Research Phylum Chordata - Presents the distinguishing features of the members of the group as well as the major subdivisions.
botw.org /new/Science/06172005.cfm   (830 words)

  
 General Zoology
A lecture and laboratory course that deals with the general principles of animal biology.
Each phylum is studied in detail with respect to its taxonomic position.
Introduction to the five kingdom approach to biology, characteristics of the Animalia, and history of the Protozoa
www.sru.edu /PAGES/2318.asp   (355 words)

  
 Biology 203 Lab
One of the characteristics of the sac fungi, Tuber melanosporum, is they emit a strong odor and cooks would use pigs (because of their keen smell) to search the undergrowth and locate this fungi for use in the delicacy called "Truffles".
The morel mushroom, highly sought after in Iowa, is also a member of this phylum.
This phylum of ~25,000 species is made up of decomposers, parasites, and mutualists.
biology.unm.edu /ccouncil/biology_203/Summaries/Fungi.htm   (1115 words)

  
 The Open Door Web Site : Biology : The Animal Kingdom
All but the last phylum, are referred to as invertebrates because they have no skeleton.
The last one, the chordate phylum, is made up of animals which have a skeleton.
The arthropod phylum can be divided into groups such as crustaceans and insects.
www.saburchill.com /chapters/chap0117.html   (138 words)

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