porifera are dangerous to humans because
The scientific name is "Phylum Porifera" (Sponges), there are over 5,000 species that exist in the marine environment and some 150 in fresh water.Please see related link below!
The Phylum Porifera consists of the sponges. To make it into the porifera phylum an animal must have no true tissue. Some contain spicules, a skeletal element, and all contain choanocysts, a type of cell, which move water through the porous bodies of poriferas. Porifera also have totipotent cells, which have the cabalitity of changing into whatever type of cell is needed by the organism.
Yes, the phylum porifera contain some of the oldest organisms because they are formed from fossilized, tiny sea organisms which were the precursors to modern life.
Phylum Porifera or Sponges are the invertebrates are simple animals,live in water,cannot move from one place to another and have foul smell. Examples are: Sponges Sycon Spongilla Euplectelea .
Phylum Arthropoda - plants: Arthropods are a diverse group of invertebrates that include insects, spiders, and crustaceans, but they are not plants. Phylum Chordata - fungi: Chordates are animals that possess a notochord at some stage in their development, and fungi belong to a separate kingdom entirely. Phylum Porifera - vertebrates: Poriferans, or sponges, are simple multicellular animals that lack tissues and organs, and are not vertebrates.
Some animals in phylum arthropods is a spider, centipedes or crabs.
Some members of Phylum Porifera show presence of spongin fibers . These fibers are present only in some fresh water sponges which are used as bath sponges .
Unique stuctures of Phylum Porifera include 1 : Spicules which may be calcarious or silicious . 2 : Canl system , which may be asconoid , syconoid or leucon type . 3 Spongin fibers in some fresh water sponges .
There are four classes in the phylum porifera. The following are the classes with example.Calcarea. E.g - Clathrina clathrusHexactinellida. E.g - Venus flower basket.Demospongiae E.g - Red encrusting sponge.Homoscleromorpha E.g - Oscarella lobularis
Animals with a backbone belong to the phylum Chordata. This phylum includes vertebrates such as fish, amphibians, reptiles, birds, and mammals, which all possess a notochord or backbone at some stage in their development.
Pigs belong to the phylum Chordata, as they are vertebrate animals with a notochord at some stage of their development.
There is no such nomenclature. Mollusks and sponges are two forms of invertebrates.Some sponges, such as Myxilla incrustans form symbiotic relationships with some mollusks (i.e scallops).