These marine animals of the phylum Porifera, which means pore-bearing, have no heads or internal organs
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Biological Diversity: Animals I - Estrella Mountain Community College  Sponges: The Phylum Porifera | Tissues: Jellyfish, Corals and Sea .... Sac-like body plan animals do not have tissue specialization or development of organs. ... Cnidarians (a group including coral and jellyfish) have only two of these ... The phylum Porifera ("pore-bearing") consists of approximately 5,000 species of sponges...
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General Biology/Classification of Living Things/Eukaryotes/Animals ...  1 Introduction to animal phyla; 2 Phylum Porifera; 3 Phylum Cnidaria ... Name means "pore-bearing". ... All are aquatic and almost all are marine. Animals in this phyla have no true tissues, which means, for example, that they ... Cnidarians have no head, no centralized nervous system, and no specialized organs for gas...
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Branches on the Tree of Life: Sponges - BioMEDIA Associates  The phylum of sponges, Phylum Porifera, is entirely aquatic, with well over 98% of all sponge species ... Biology students who investigate these geological features are likely to find 'living paintings' on the ... The name Porifera means pore-bearing. ... Their tissues are loosely organized, and they have no internal organs.
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95.05.08: The Animal Kingdom  Invertebrate Animals Phylum; ____(A) Phylum Porifera; ____(B) Phylum Cnidaria ... These animals are characterized by having special stinging organs called nematocysts. .... Most head-footed mollusks do not have an external shell, but do have some part of ... This phylum contain pore-bearing animals known as sponges.
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Free Flashcards about ZOOLOGY - StudyStack  THESE MARINE ANIMALS OF THE PHYLUM PORIFERA, WHICH MEANS PORE-BEARING, HAVE NO HEADS OR INTERNAL ORGANS, SPONGES.
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The Sponges (Phylum Porifera) - The Earth Life Web  The Phylum Porifera ... if given time the individual cells will come together again and make a new sponge. A sponge is a simple organism that is easy to describe. ... The canals have openings to the outside which are called pores, where the water ... These choanocytes keep the water flowing through the canals in the correct...
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Arthropods  Arthropods have segmented bodies, like the annelid worms. These segments have become specialized, however, with one pair of jointed appendages ... often with intricate mouthparts and elaborate sensory organs, including statocysts, ... Despite their aquatic diversity, there are very few terrestrial crustaceans, just as there...
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Jeopary Questions page 864 - THE BEAUTIFUL SOUTH ...  OCEAN LIFE: Having flat teeth is one way that these animals differ from the ... LIFE: The species Oceanites oceanicus isn't a fish but a petrel, one of these.
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How Do Whales Breathe? - Whale Facts  Unlike fish these marine mammals are not equipped with gills, which fish and other ... believe that the toothed whale suborder developed one of their blowholes into an ... Having their blowhole on the top of their head makes it easier for them to ... While whales are known to breathe through their blowholes they are unable to...
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dynamic ocean 3 Flashcards | Quizlet  jawless "fish" but have cranium and skull; mouths are "suckers": tear flesh off with ... pinnipeds. mammalian nekton: walrus, true and walking seals, carnivores ... hairs in wall beat back and forth to create a current, gets sucked into middle and ..... create enormous strength; pries clam shell open a little, "pukes" its stomach and...
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Cephalopod - Wikipedia  A cephalopod is any member of the molluscan class Cephalopoda These exclusively marine ... In the Coleoidea, the molluscan shell has been internalized or is absent, whereas in ... Left: An octopus opening a container with a screw cap .... Like most molluscs, cephalopods use hemocyanin, a copper-containing protein,...
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Cnidaria facts, information, pictures | Encyclopedia.com articles ...  Most cnidarians are marine, although a few, such as the well-known hydra, are ... as the mesoderm of other animal groups, being primarily gelatinous with only a few ... significant than among the Hydrozoa, since the medusa stage is dominant. ... The Anthozoa includes the sea anemones and the corals. .... Class Scyphozoa
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Invertabrates - LiveBinder  Sponges are also classified as animals because they are multicellular, ... &nbsp;Sponges are usually very colorful and grow in irregular shapes. ... contain a simple skeleton. ... The name Anthozoa literally means "flower animal". ..... Underneath the mantle is what is called a visceral mass, this holds all of the internal organs.
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Dolphin Frequently Asked Questions - The Institute for Marine ...  Unlike us, dolphins only have one set of teeth their entire lives. ... Porpoises have a rounded, blunt-shaped head, whereas most dolphin ... Porpoises have a triangular dorsal fin, whereas dolphins have a falcate (hook-shaped) dorsal fin.
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Clams, Snails, and Squid: Phylum Mollusca, Class Pelecypoda | The ...  Clams, Snails, and Squid: Phylum Mollusca, Class Pelecypoda. Pelecypods have two shells, or bivalves, that protect the soft parts of the animal. The valves are generally of equal size (except in groups like the oysters) and shape and are hinged at the back.
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Kingdom Animals - El Camino College  around them  this led to evolution of head having most sense organs to observe ... digestive system has mouth to feed and anus to defecate e) Segmentation is the ... Sponges may have asymmetric or radial symmetry. No true tissues or organs .... 5 thick arms with viscera extended into them and feed on Clams or Oysters.
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Cuttlefish - Wikipedia  Cuttlefish are marine animals of the order Sepiida. They belong to the class Cephalopoda, which also includes squid, octopuses, and nautiluses. Cuttlefish have a unique internal shell, the cuttlebone. Despite their name, cuttlefish are not fish but molluscs. Cuttlefish have large, W-shaped pupils, eight arms, and two tentacles ... The word for it in both Greek and Latin, sepia, now refers to a brown pigment...
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BIVALVES by J.H. Leal, Bailey-Matthews Shell Museum, Florida ...  Bivalves have lost the radula, eyes, or tentacles as present in other molluscs, but ... Hinge teeth -projections that interlock on the inner side of the bivalve shell .... teeth ligament internal anterior ear pallial line without sinus sockets posterior ear ...... of right valve valve Diagnostic characters: Shell large, fan-shaped, triangular.
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MARINE INVERTEBRATES  whelka marine snail shown laying its eggs in the photo aboveis a ... The squid and the octopus ... have either an external or internal shell. They also have advanced features, first seen in the annelids, such as a coelom and a brain.
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Marine Biology Exam 2 Flashcards | Quizlet  Population of algae and other small, unicellular photosynthetic organisms found near ... Microscopic nonphotosynthetic animals that swim or drift near the surface of ... in corals, sea anemones, mollusks and several other types of marine animals ..... No dorsal fin; long baleen; eats slow moving things; most commonly hit by...
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Sea anemone - Wikipedia  Sea anemones are a group of water-dwelling, predatory animals of the order Actiniaria. ... The mouth, also the anus of the sea anemone, is in the middle of the oral disc surrounded by tentacles armed with many ... In some species, these filaments extend below the lower margin of the mesentery, hanging free in the...