The simplest organization (seen in the flatworms) is the acoelomate body plan. In these animals the body cavity is loosely filled with mesodermal cells called parenchyme. The pseudocoelomate body plan has a fluid-filled cavity called the pseudocoelom.
cas.bellarmine.edu/tietjen/images/body_plans_of_animals... cas.bellarmine.edu/tietjen/images/body_plans_of_animals.htm
The simplest organization (seen in the flatworms) is the acoelomate body plan. In these animals the body cavity is loosely filled with mesodermal cells called parenchyme. The pseudocoelomate body plan has a fluid-filled cavity called the pseudocoelom.
cas.bellarmine.edu/tietjen/images/platyhelminthes.htm
1. Acoelomate, in which no coelomic cavity exists. Find an animal in your textbook or in the lab that is an example of this body plan. ... (E) The Evolution of Body Plan in Major Animal Phyla...
userwww.sfsu.edu/~biol240/labs/lab_16animalbodyplan/pag... userwww.sfsu.edu/~biol240/labs/lab_16animalbodyplan/pages/bodyplan.html
Acoelomate body plan. Acoelomate animals have no body cavity at all. Organs have direct contact with the epithelium. Semi-solid mesodermal tissues between the gut and body wall hold their organs in place. There are two types of acoelomate body plans.
www.newworldencyclopedia.org/entry/Body_cavity www.newworldencyclopedia.org/entry/Body_cavity
1.  Discuss the current triploblastic acoelomate body plan. 2.  Discuss the concept of the organ/system level of organization and apply this to the phylums to be studied in this unit. 3.  Define bilateral symmetry and cephalization.
www.wncc.net/courses/dnash/zoology/acoelomates.htm www.wncc.net/courses/dnash/zoology/acoelomates.htm
THE TRIPLOBLASTIC, ACOELOMATE BODY PLAN ... The acoelomates, pseudocoelomates, and eucoelomates ... no body cavity [fig. 16.11a]; body solid, double-walled sac surrounding digestive cavity;
users.tamuk.edu/kfjab02/Biology/BIOLOGY%20II/Taxa/b1313... users.tamuk.edu/kfjab02/Biology/BIOLOGY%20II/Taxa/b1313_ch19.htm
There is no space between the gut and epidermis in the acoelomate body plan. ... Body Cavities...
www.occc.edu/trandall/biologylabs/Documents/Animals/Bod... www.occc.edu/trandall/biologylabs/Documents/Animals/Body_Cavities.htm
The term "body plan" refers to the general similarities in development and form and function among members of a particular phylum. Another name for these similarities ... No pseudocoele, body is acoelomate, has coelom-like structure for storing proboscis, complete digestive tract, circulatory system with hemoglobin.
www.novelguide.com/a/discover/ansc_01/ansc_01_00049.htm... www.novelguide.com/a/discover/ansc_01/ansc_01_00049.html
Their unusual acoelomate, incompletely segmented body plan--the result of their long history of obligate association--has caused two centuries of dispute amongst systematists. Myzostomids have been considered as annelids, sometimes within the polychaetes, sometimes not.
www.sciencemag.org/cgi/content/short/289/5477/217c
What does an acoelomate animal lack? What does an acoelomate animal have? Wuts an acoelomate animals body plan? Describe an acoelomate animals body plan? What is the body structure of Acoelomate? Are jellyfish coelomate species or acoelomate?
wiki.answers.com/Q/What_is_acoelomate wiki.answers.com/Q/What_is_acoelomate