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Sponges constitute the phylum Porifera, and have been defined as sessile metazoans ( multi-celled animals ) that have water intake and outlet openings connected by chambers lined with choanocytes, cells with whip-like flagella.
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Sponges and constitute
Sponges, tunicates and other benthic invertebrates constitute the bulk of the moorish idol's diet in the wild.
Sponges and phylum
Sponges are animals of the phylum Porifera (; meaning " pore bearer ").
Sponges and Porifera
Van Soest, eds., 2002, Systema Porifera: a guide to the classification of Sponges.
Sponges and have
Sponges have no nervous system, although they have homologs of many genes that play crucial roles in nervous system function, and are capable of several whole-body responses, including a primitive form of locomotion.
Sponges have unspecialized cells that can transform into other types and which often migrate between the main cell layers and the mesohyl in the process.
Sponges do not have nervous, digestive or circulatory systems.
Sponges have no true circulatory system ; instead, they create a water current which is used for circulation.
Sponges and been
* It has been used as a term to describe the reproductive methods of some forms of Mollusks, Cnidarians, Sponges and Ctenophores.
Sponges and animals
Sponges are like other animals in that they are multicellular, heterotrophic, lack cell walls and produce sperm cells.
Sponges are generally agreed, also, to not form a monophyletic group, in other words do not include all and only the descendants of a common ancestor, because Eumetazoa ( more complex animals ) are thought to be descendants of a subgroup of sponges.
Sponges and water
Sponges typically feed by drawing in water through pores.
Sponges pump remarkable amounts of water.
Sponges and by
The terms " gastrula " and " gastrulation " were coined by Ernst Haeckel, in his 1872 work " Biology of Calcareous Sponges ".
Sponges are fished individually by hand and it is only a matter of time before the species will replenish the sponge beds and again take its rightful place in the island's economy.
Sponges and cells
Sponges are known for regenerating from fragments that are broken off, although this only works if the fragments include the right types of cells.
Sponges and .
Sponges are known from spicules and anchor ropes, and include various forms such as the Calcispongea Cotyliscus and Girtycoelia, the demosponge Chaetetes, and the genus of unusual colonial glass sponges Titusvillia.
Sponges and their microscopic endosymbionts are now being researched as possible sources of medicines for treating a wide range of diseases.
Sponges are another part of their menu.
* Chia Terra Cotta Herb Garden — Wave 5 ( 1996 ) second version: four pots ( terracotta ), four saucers ( terracotta ), four Chia Growing Sponges, six packets of herb seeds ( cilantro, sweet marjoram, basil, chives, dill, parsley ), six plant markers, four saucer liners, and recipe book.
* Gourmet Chia Herb Garden — Wave 10 ( 2004 ), includes four pots ( terracotta ), four saucers ( terracotta ), four Chia Growing Sponges, six packets of " gourmet " herb seeds ( cilantro, sweet marjoram, sweet basil, chives, dill, curled parsley ), six plant markers, four saucer liners, and recipe book.
Sponges work in two ways.
* Bergquist, P. R. Sponges.
Natural Sponges in Tarpon Springs, Florida.
Sponges, brachiopods, sea stars, and echinoids are also common in the bathyal zone.
constitute and phylum
The Chadic languages constitute a language family of perhaps 150 languages spoken across northern Nigeria, southern Niger, southern Chad, Central African Republic and nortern Cameroon, belonging to the Afroasiatic phylum.
It has not been demonstrated that the Nilo-Saharan languages constitute a valid genetic grouping, and it has been seen as Greenberg's ' wastebasket ' phylum, into which he placed all the otherwise unaffiliated non-click languages of Africa.
Sea urchins or urchins are small, spiny, globular animals which, with their close kin, such as sand dollars, constitute the class Echinoidea of the echinoderm phylum.
The microsporidia constitute a phylum of spore-forming unicellular parasites.
constitute and have
Algae constitute a paraphyletic and polyphyletic group, as they do not include all the descendants of the last universal ancestor nor do they all descend from a common algal ancestor, although their plastids seem to have a single origin.
Sometimes, EVPs report to the Vice Chair who in turn reports directly to the CEO ( so Vice Chairs in effect constitute an additional layer of management ), other Vice Chairs have more responsibilities but are otherwise on an equal tier with EVPs.
We have seen the cause of democracy, which is, in our view, the cause of civilisation and humanity, receive a terrible defeat ... The events of these last few days constitute one of the greatest diplomatic defeats that this country and France have ever sustained.
As a rule three bands from which the ornamental work springs constitute the hinges, which have rings outside the hanging stiles fitting on to vertical tenons run into the masonry or wooden frame.
African elephants have traditionally been classified as a single species comprising two distinct subspecies, namely the savanna elephant ( Loxodonta africana africana ) and the forest elephant ( Loxodonta africana cyclotis ), but recent DNA analysis suggests that these may actually constitute distinct species.
However, focusing on this approach to defining euthanasia may also lead to counterexamples: such definitions may encompass killing a person suffering from an incurable disease for personal gain ( such as to claim an inheritance ), and commentators such as Tom Beauchamp & Arnold Davidson have argued that doing such would constitute " murder simpliciter " rather than euthanasia.
Authors such as Virginia Woolf, D. H. Lawrence, and Joseph Conrad have written works that are Impressionistic in the way that they describe, rather than interpret, the impressions, sensations and emotions that constitute a character's mental life.
: The ordinary, familiar, everyday things and occurrences, we have constitute occasions for the experience of God.
Caesar continued his relationship with Cleopatra throughout his last marriage, which lasted fourteen years – in Roman eyes, this did not constitute adultery – and may have fathered a son called Caesarion.
The Kordofanian languages have not been shown to be more distantly related than other branches of Niger – Congo, however, nor have they been shown to constitute a valid group.
Mass deacidification-along with microfilm and lamination-was developed during the early-and mid-20th century as a response to the chemical process of hydrolysis by which the fibers that constitute paper, providing its structure and strength, have their bonds broken, resulting in paper that becomes increasingly brittle over time.
The histone tail extensions constitute up to 30 % by mass of histones, but are not visible in the crystal structures of nucleosomes due to their high intrinsic flexibility, and have been thought to be largely unstructured.
For a woman to have sexual relations when she is married to another ( which would include a situation such as polyandry ) would constitute adultery.
According to Grove Music Online, " Western-derived pop styles, whether coexisting with or marginalizing distinctively local genres, have spread throughout the world and have come to constitute stylistic common denominators in global commercial music cultures ".
A great variety of changes in the extracellular or intracellular environment may have impact on gene expression, depending on the exact configuration of a given promoter: the combination and arrangement of specific DNA sequences that constitute the promoter defines the exact groups of proteins that can be bound to the promoter, at a given timepoint.
The Court justified this by saying that the Covenant of the League of Nations allowed them jurisdiction in cases over " the existence of any fact which, if established, would constitute a breach of international obligations ", arguing that since the fact " may be of any kind " they have jurisdiction if the dispute is one of municipal law.
No sooner had the treaty been ratified in May 1213 than Pandolfo announced to Philip that he would have to abandon his expedition against John, since to attack a faithful vassal of the Holy See would constitute a mortal sin.
If other peoples have had prophets, books, and laws, these constitute no difficulty for Islam .”
The principal political parties, however, constitute a true multiparty, democratic political culture, and they have contributed to one of the most successful democratic transitions in Africa, even among all developing countries.
The surrounding circular earth bank and ditch, which constitute the earliest phase of the monument, have been dated to about 3100 BC.
A sex organ, or primary sexual characteristic, as narrowly defined, is any of the anatomical parts of the body which are involved in sexual reproduction and constitute the reproductive system in a complex organism ; flowers are the reproductive organs of flowering plants, cones are the reproductive organs of coniferous plants, whereas mosses, ferns, and other similar plants have gametangia for reproductive organs.
In recent years, nontraditional ( i. e., nonpetroleum ) exports have been growing rapidly but still constitute only about a quarter of total exports.
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