Chapter 4 animal kingdom animal kingdom is characterized by multicellular, eukaryotic organisms. They are part of the plankton, and there are also pelagic species. Pdf evolution and adaptive radiation of the phylum ctenophora. Ppt ctenophora powerpoint presentation free to view id. The slide design has a press card template with gray background and you can use this template to make useful powerpoint presentations and slide designs or newsletter powerpoint presentations. Pdf physiological characteristics of the ctenophore. Ctenophore simple english wikipedia, the free encyclopedia. Ctenophore definition of ctenophore by the free dictionary. The site rivals previously described cambrian sites, such as the burgess shale, and should help to elucidate. Pictures of the day ctenophores from ernst haeckles art forms of nature iridescense bioluminescence ctenophora and speculations about the basal metazoa urmetazoa see ch 7 and ch 4 pp 8788 ctenophora characteristics ii.
Cnidaria and urochordata 4 digestive canals lead from the roof of the stomach to the animals aboral surface 2 of the canals terminate in blind sacs. The photo gallery of the bioluminescence web page also has some great pictures of ctenophores. All known living animals belong to one of five clades. Bioluminescence the property of living organism to emit light is wellmarked in. The phylum ctenophora, the comb jellies, is a phylum of marine invertebrates. Porifera have a cellular, rather than tissular, level of organization, without any true nervous or. Cnidarians are all aquatic, most are marine but some are fresh water hydra they get their name from nematocysts, which are specialized cells that carry stinging organelles called cnidocysts. Hormiphora the sea walnut, pleurobrachia the sea gooseberry. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Ctenophores and bioluminescence by echelle burns on prezi. The ctenophore phylum has a wide range of body forms, including the flattened, deepsea platyctenids, in which the adults of most species lack combs, and the coastal beroids, which lack tentacles and prey on other ctenophores by using huge mouths armed with groups of large, stiffened cilia that act as teeth. Remote work advice from the largest allremote company. The cilia in each row are arranged to form a stack of combs, also called comb plates, or ctenes. Download jellyfish blooms new problems and solutions in pdf.
Chart and diagram slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects. Ctenophores sister to other extant animals and monophyletic sponges. Ctenophores and cnidarians differ in their mode of locomotion. Most ctenophores are colourless, although beroe cucumis is pink and the venuss girdle cestum veneris is delicate violet. View notes lecture 4porifera, cnidaria, ctenophora slides from biol 202 at queens university. The corrections added in 2003 were mostly in the phylum mollusca. Institute of biology of the southern seas, national. Jan 25, 2015 materi ppt cnidaria dan ctenophora biologi kelas 10 semester 2 slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Materi ppt cnidaria dan ctenophora biologi kelas 10 semester 2 slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. They ingest and digest food holozoic, hence they are heterotrophic. Ctenophora adalah filum dengan sedikit spesies tetapi beraneka ragam bentuk. Or use it to find and download highquality howto powerpoint ppt presentations with illustrated or animated slides that will teach you how to do something new, also for free.
It was hatschek 1839 who put all the ctenophores under a distinct phylum. Faculty, college of education, arts and sciences ramon magsaysay technological university phylum ctenophora animals in the phylum ctenophora gr. Ctenophores are abundant throughout the ocean from pole to pole and down to a depth of at least 7000 m. It is native to the atlantic coast of the americas inhabiting temperate to subtropical estuaries ranging in temperatures of 032c and salinities of 238 ppt baker and reeve, 1974. Error, signal, and the placement of ctenophora sister to. There are about 150 described species of ctenophora spread throughout the worlds oceans, from shallow estuarine waters to the deep sea. Multiple choice questions on phylum porifera sponges. Inside their clade, each phylum is clearly distinguished by its general features. Mostly marine animals, the cnidarians include the corals, hydras, jellyfish, portuguese menofwar, sea anemones, sea pens, sea whips, and sea fans. Ctenophora tenophora is a combination of two greek roots meaning comb bearers cteno comb. Ctenophore genomes are unique in many respects 17, 18. A sponge can be distinguished from other animals by the presence of. Ctenophores have connective tissues and a nervous system. Diversity of life ii lecture 4the sponges, jellysh and comb jellies phyla.
A few exceptional bottomdwelling spp but no polyp phase polymorphism unknown in ctenophores no ctenophores are colonial colloblast lasso cells for feeding gastrulation by epiboly or by invagination whereas cnidarians gastrulate by delamination primarily swimming by comb rows under control of apical organ sense organs statolith etc. Sponges, cnidarians and ctenophores authorstream presentation. General characteristics 1 multicellular animals characterized by a flat, bilaterally symmetric body. Ctenophore definition of ctenophore by merriamwebster. Porifera sponges, ctenophora comb jellies, placozoa, cnidaria, and bilateria. The file below is the pdf file for the invertebrates. You should couple these with other learning resources including among others, course compendium vol. The phylum ctenophora is a small phylum containing about 90 species of generally small and delicate animals known as comb jellies. Phylum ctenophora free download as powerpoint presentation.
Ppt phylum ctenophora powerpoint presentation free to. If you continue browsing the site, you agree to the use of cookies on this website. Information zooplankton all marine no freshwater species transparent, globe or egg shaped jellies similar to but are not considered jellyfish. Phylum ctenophora comb jellies, similar to jellyfish but they have a simpler life cycle and they lack nematocysts, so they capture prey with sticky cells on two long tentacles, moves around when combs of cilia beat in sequence. Most of these species live on other animals, for instance with echinoderms, sponges, or benthic cnidarians.
View notes lecture 4porifera, cnidaria, ctenophoraslides from biol 202 at queens university. They have eight rows of cilia which look like the teeth of a comb, hence ctenophore combbearer. Baixe no formato ppt, pdf, txt ou leia online no scribd. Most ctenophores use paired tentacles to capture prey, and these tentacles usually carry colloblastsspecial, very. You can also learn how to make a seminar or organize a seminar presentation by reading our giving a seminar powerpoint presentation. Until fairly recently, no fossil ctenophores were known. Most ctenophores also called comb jellies are gelatinous zooplancton exclusively marine that are characterized by 8 meridional ciliated comb rows ctenes disposed around a unique oralaboral axis.
Or use it to upload your own powerpoint slides so you can share them with your teachers, class. Ctenophores are the most basal known type of animals. Phylum ctenophora comb jellies, sea walnuts ctenophore to bear a comb 150 species include comb jellies and sea walnuts first described in late 1600s as a kind of jellyfish only designated as a unique phylum of animals in 1800s apparently an ancient group 515 m yr old fossils have been found in china stromatoveris. Physiological characteristics of the ctenophore beroe ovata in caspian sea water article pdf available in marine ecology progress series 266. Ctenophores have rows of cilia arrays comb plates that are used for locomotion and they are lacking nematocytes brusca and brusca, 2002. In this article we will discuss about the general characters and classification of phylum ctenophora. Like most pelagic cnidarians, the bodies of ctenophores are made up mostly of water, and the chances of leaving a recognizable fossil are very slim. There is even one group of ctenophores, the beroids, which feeds on other ctenophores, and there are. Ctenophore structures and their functions under the scope. Ctenophores move through the water by beating their comb rows they are the largest animals to move entirely by ciliary movements but they also have a complex array of definitive muscle cells.
Higher forms show elaborate sensory and neuromotor systems. Spesies dekat pantai lebih kuat dibanding spesies laut lepas karena mereka harus menahan ombak dan partikel dasar laut yang disebar oleh air, sehingga spesies dekat pantai lebih mudah untuk ditangkap untuk dipelajari dibanding spesies laut lepas yang rapuh dan sulit diawetkan. Spons, cnidaria dan ctenophora samasama memiliki sepasang lapisan sel yang mengapit lapisan jeli, pada spons lapisan jeli ini dinamakan mesohil, sedangkan pada cnidaria dan ctenophora dinamakan mesoglea. Although the main body axis of ctenophores is also the oralaboral axis, with a mouth at one end and a sensory organ at the opposite end, they are quite different from cnidarians. Many ctenophores, like various other planktonic organisms, are bioluminescent, able to give off light until fairly recently, no fossil ctenophores were known. Lecture 4porifera, cnidaria, ctenophoraslides biol 202. The body bears eight external rows of ciliated comb plateswhich help in, locomotion figure 4. The hidden biology of sponges and ctenophores sciencedirect. Ctenophores, a small group of marine animals, are of interest due to their unusual biology, controversial phylogenetic position, and devastating impact as invasive species. Ctenophores are characterized by eight rows of cilia, which are used for locomotion.
The outstanding diversity and adaptive radiation of ctenophores in the homogeneous pelagic realm, where niche overlap is high and barriers to genetic exchange are diffuse, remains a mystery of the. Phylum ctenophora is the property of its rightful owner. Porifera, cnidaria, and ctenophora are the most primitive clade of metazoans. Sara encyclopedia of life support systems eolss collencytes, found in the mesohyl, are elongated cells that often form a net in the cytoplasm with a support function. Learn ctenophores with free interactive flashcards. Ctenophora lebih kompleks dari porifera, setingkat dengan cnidaria, tetapi lebih sederhana dari bilateria hewan lainnya. Lecture powerpoint presentations these lecture powerpoint presentations serve as a summary of key points in each topic. Nov 16, 2017 these lecture powerpoint presentations serve as a summary of key points in each topic. The phylum includes the sea gooseberry pleurobrachia pileus and venus girdle cestum veneris. The colourless species are transparent when suspended in water, except for their beautifully iridescent rows of comb plates. Nearly all authors have divided ctenophores into two classes. The phylum cnidaria and ctenophora powerpoint presentation covers the following topics and more. Pdf evolution and adaptive radiation of the phylum.
Ctenophores were used in the experiments the same day of. It is an efficient predator of zooplankton, fish eggs, and larval fish colin et al. The greater number of the species belonging to these groups is marine based, but a few families of porifera and. Animal life exploded in diversity and form during the cambrian period about 500 million years ago. The first definite description of ctenophores was given by martens 1671. In ctenophores, however, these layers are two cells deep, while those in cnidarians are only a single cell deep. Most of the fossils ascribed to ctenophores hinge on the presence of ribbed frondlike structure construed as comb plates or a stalk at the base, which is interpreted as the apical organ. Ppt ctenophora powerpoint presentation free to view. It is dorsoventrally flattened and is solid no body cavity. Learning about ctenophores from the fossil record is challenging, because ctenophores preserve so poorly. Ctenophores are gelatinous like sea jellies jellyfish, but lack their stinging cells. Ctenophores are very common marine animals found in diverse habitat.
For this reason their lifespan is not known, but ctenophores begin to reproduce at an early age. Choose from 364 different sets of ctenophores flashcards on quizlet. Reproduction and development in ctenophores springerlink. They are widely distributed being specially abundant in the warmer seas, though some occur in temperate or arctic regions. Ctenophores ctenophores, also knowns as comb jellies or sea walnuts, are an important phylum in the global ocean, serving as a critical middle step in the food web between smaller zooplankton and larger fishes. Many ctenophores, like various other planktonic organisms, are bioluminescent, able to give off light. Ctenophore, any of the numerous marine invertebrates constituting the phylum ctenophora. A few exceptional bottomdwelling spp but no polyp phase polymorphism unknown in ctenophores no ctenophores are colonial colloblast lasso cells for feeding gastrulation by epiboly or by invagination whereas cnidarians gastrulate by delamination primarily swimming by comb rows under control of apical. Nematocysts are concerned with food capture, defence and attachment. Ctenophora wikipedia bahasa indonesia, ensiklopedia bebas. We measured the polar length of every ctenophore along the oralaboral axis to the nearest mm using calipers and placed them in individually marked 4. The phylum was grouped with cnidaria jellyfish in the former coelenterata phylum. Ctenophores are also characterized by a pair of tentacles that they spread out like a web to catch zooplankton prey, such as small crustaceans and even small fish.
If so, share your ppt presentation slides online with. Most ctenophores use paired tentacles to capture prey, and these tentacles usually carry colloblastsspecial, very sticky adhesive cells. The ctenophores are diploblastic with a modified radial or biradial symmetry. Radiate animal characteristics meaning of phylum names classification cnidarian diversity body structure cell layers, gastr. The phylum derives its name from the greek ctene, or comb, and phora, or bearer from the series of vertical ciliary combs over the surface of the animal.
Cnidarian, also called coelenterate, any member of the phylum cnidaria coelenterata, a group made up of more than 9,000 living species. Phyla cnidaria and ctenophora presentation free download as powerpoint presentation. Our new crystalgraphics chart and diagram slides for powerpoint is a collection of over impressively designed datadriven chart and editable diagram s guaranteed to impress any audience. Phylum cnidaria and ctenophora powerpoint presentation.
The adobe flash plugin is needed to view this content. The ctenophore genome and the evolutionary origins of neural. Many species are quite and many are also almost transparent, a few species can be very beautiful as they have the ability to produce green and blue coloured light. The salinity of the seawater ranged between 35 and 36 ppt. Nonetheless, they are fragile and gelatinous, which makes them difficult to collect and study.
Although most ctenophores swim, one group creeps along the bottom of the seas. The name is a reference to the comblike ciliary rows. Many planktonic ctenophores produce a rainbow effect, which is not caused by bioluminescence but by diffraction, the scattering of light, as the cilia on the combs beat. All maximumlikelihood analyses with outgroups resulted in topologies with strong support. Porifera sponges and cnidaria sea anemones, corals, and medusae include numerous species, while few species of ctenophores jelly combs have been described. This book includes an introduction to the ctenophora and descriptions with color or blackandwhite photographs of 28 species of west coast ctenophores, most of which are also found elsewhere in the world. Ctenophores also resemble cnidarians in relying on water flow through the body cavity for both digestion and respiration, as well as in having a decentralized nerve net rather than a brain. Ctenophore definition is any of a phylum ctenophora of marine animals superficially resembling jellyfishes but having biradial symmetry and swimming by means of eight bands of transverse ciliated plates called also comb jelly. Reproduction can reproduce sexually or asexually separate sexesmale and female fertilization occurs externally when sperm and egg unite asexual reproduction is by budding when a small polyp breaks away and grows into an adult two life forms polyp and medusa. Remove this presentation flag as inappropriate i dont like this i like this remember as a favorite.
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