[DOC] [TLE] General Biology/Classification of Living Things/Eukaryotes/Animals ... [PAR] 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
... [DOC] [TLE] Biological Diversity: Animals I - Estrella Mountain Community College [PAR] 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... [DOC] [TLE] 95.05.08: The Animal Kingdom [PAR] 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. [DOC] [TLE] Branches on the Tree of Life: Sponges - BioMEDIA Associates [PAR] 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. [DOC] [TLE] Free Flashcards about ZOOLOGY - StudyStack [PAR] THESE MARINE ANIMALS OF THE PHYLUM PORIFERA, WHICH MEANS PORE
-BEARING, HAVE NO HEADS OR INTERNAL ORGANS, SPONGES. [DOC] [TLE] ANIMAL BIOLOGY - Angelfire [PAR] Sac-like body plan animals do not have tissue specialization or development of 
organs. ... Some animals, most notably sponges, lack these tissue layers. ... The 
Phylum Porifera ("pore-bearing") contains approximate 5,000 species of sponges
. ..... 1. a visceral mass containing internal organs, including the digestive tract,... [DOC] [TLE] Animal Phyla - Wayne's Word [PAR] In addition, animals are capable of locomotion or body movement by means of ... 
Primitive phyla without a true coelom include the Porifera and Coelenterata (
Cnidaria). ... Coelomates have more complex internal organs and a muscular gut 
.... Marine and freshwater animals with radial symmetry; this phylum has two 
distinct... [DOC] [TLE] Life of a Sponge [PAR] They are stuck to the floor in the oceans, sea, and rivers. ... Some of these 
sponges are very colorful and beautiful (1). Common Name: Sponges; Kingdom: 
Animalia; Phylum: Porifera; Classes: Calcarea, Demospongiae, ... Sponges do 
not have any internal organs or a nervous system. ... Porifera means pore-
bearing. [DOC] [TLE] WHOI-E-01-002 DiSpezio, M. Teaching Materi - Woods Hole ... [PAR] For Woods Hole Oceanographic Institution Sea Grant Program ... These minerals 
(such as calcium) gives bone its strength and hardness. ... Animals that do not 
have backbones are called invertebrates. .... The phylum name, Porifera, means "
pore bearing," which refers to the holes that .... their sensory organs are located. [DOC] [TLE] Mader/Biology, 6/e - Chapter 33 Outline and Terms [PAR] All major animal phyla are found in Cambrian fossils, but it is difficult to trace a 
fossil history ... Asymmetry means a body plan has no particular symmetry. b. ... 
Animals with all three tissue layers can develop an organ level of organization. ... 
Their saclike bodies are perforated by many pores; Porifera means "pore-bearing
.". [DOC] [TLE] About Sponges - Tree of Life Web Project [PAR] The scientific name of a sponge is Porifera, which means pore-bearing. Click on 
... They have partially differentiated tissues, and not true tissues. Sponges don't 
have internal organs. They don't ... Sponges may have adapted to these

Question: These marine animals of the phylum Porifera, which means pore-bearing, have no heads or internal organs
Answer: Sponges