Which of the following is a feature of the tube within a tube body plan in most animal phyla?

Which of the following is a feature of the tube-within-a-tube body plan in most animal phyla? The mouth and anus form the ends of the inner tube.

What are the basic plans of body design in animals?

At a very basic level of classification, true animals can be largely divided into three groups based on the type of symmetry of their body plan: radially symmetrical, bilaterally symmetrical, and asymmetrical. All types of symmetry are well suited to meet the unique demands of a particular animal's lifestyle.

What are the three body plans shown by Triploblastic organisms?

Animal tissues develop from embryonic germ layers. Triploblastic animals have three germ layers (ectoderm, mesoderm, and endoderm) and three basic body plans related to body cavities (acoelomate, pseudocoelomate, and coelomate).

Which lists the three tissue layers in a typical animal?

Many, but not all, animals produce three embryonic tissue tissue layers (shown in Table 1) as they develop: the endoderm, mesoderm, and ectoderm. Some animals, most notably sponges, lack these tissue layers. Cnidarians (a group including coral and jellyfish) have only two of these layers, and are termed diploblastic.

Is there a tube within a tube body plan in Ascaris?

(3) Leeches are segmented worm like animals belonging to phylum Annelida that are schizocoelomates. (4) Ascaris is a genus of parasitic roundworms pseudocoelomates. (5) Leeches are segmented parasitic worms which belong to phylum Annelida. Leech does not show tube body plan.

What is the meaning of body plan?

: an end elevation in shipbuilding showing the contour of the sides or the transverse vertical cross sections of a ship at certain points of her length.

What is a basic body plan?

A body plan is a group of structural and developmental characteristics that can be used to identify a group of animals, such as a phylum. All members of a particular group share the same body plan at some point during their development—in the embryonic, larval, or adult stage.

What’s a mesoderm?

The mesoderm is a germ layer that arises during gastrulation, and is present between the ectoderm, which will turn into skin and central nervous system cells, and the endoderm, which will produce the gut and the lungs (4).

Where is the mesoderm?

mesoderm, the middle of the three germ layers, or masses of cells (lying between the ectoderm and endoderm), which appears early in the development of an animal embryo.

Which derived character is shared by all Eumetazoans?

The Eumetazoa clade includes all animals, except phylum Porifera. A feature shared in common by all eumetazoans is the presence of true tissues.

What tissue layer lines the body cavity of an animal that contains a coelom?

Mesoderm Mesoderm lines the coelom and forms the peritoneum, which also surrounds and supports the internal organs.

What is tube in tube body plan?

The tube-within-tube body plan involves two tubes or openings from one food entering (mouth) and from another, the wastes are excreted outside the body (anus). Additional Information: -A Tube-within-tube body plan is generally found in higher animal groups from nematodes to chordates.

What is tube in tube digestive system?

The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus. The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus. The liver, pancreas, and gallbladder are the solid organs of the digestive system.

What is body plan of the ship?

Since a ship's hull is symmetric about the centerline, a common practice prevails in which the curve is drawn on either side of the centerline, and this view is called the body plan or the half breadth plan of the ship.

What is a body plan in biology?

Abstract. A body plan is a suite of characters shared by a group of phylogenetically related animals at some point during their development. The concept of bauplane, or body plans, has played and continues to play a central role in the study of evolutionary developmental biology (evo-devo).

What determines body plan?

Genes, embryos and development together determine the form of an adult organism's body, through the complex switching processes involved in morphogenesis.

What is body plan explain the types of body plan?

What is mesoderm derived from?

The mesoderm is the middle layer of the three germ layers that develops during gastrulation in the very early development of the embryo of most animals. The outer layer is the ectoderm, and the inner layer is the endoderm….

Mesoderm
Tissues derived from mesoderm.
Section through a human embryo
Details
Days	16

What is endoderm derived?

Endoderm forms the epithelium—a type of tissue in which the cells are tightly linked together to form sheets—that lines the primitive gut. From this epithelial lining of the primitive gut, organs like the digestive tract, liver, pancreas, and lungs develop.

What is derived from the ectoderm?

The tissues derived from the ectoderm are: some epithelial tissue (epidermis or outer layer of the skin, the lining for all hollow organs which have cavities open to a surface covered by epidermis), modified epidermal tissue (fingernails and toenails, hair, glands of the skin), all nerve tissue, salivary glands, and …

What are Radiata and Bilateria?

Radiata are diploblastic organisms which means they have 2- germ layers ie. ectoderm and endoderm whereas Bilateria are triploblastic organisms which means they have 3-germ layers ie. ectoderm, endoderm and mesoderm.

What is Parazoa and Eumetazoa?

In Parazoa, the body of animal is made up of loose cells, have poorly differentiated tissues and have no organ or digestive cavity. E.g sponges. In Eumetazoa the cells are properly arranged into tissues and organs.

What tissue layer lines the body cavity of an animal that contains a coelom quizlet?

Coelomate animals or Coelomata (also known as eucoelomates — "true coelom") have a fluid filled body cavity called a coelom / with a complete lining called peritoneum derived from mesoderm (one of the three primary tissue layers).

Which phylum is characterized by a tube within a tube structure?

The phylum Annelida is constructed on a tube within a tube body plan. The digestive tract with terminal mouth and anus runs more or less through the center of the body. Annelids are characterized by external and internal segmentation.

How many of the following have tube within tube body plan?

So the correct answer is ' Aschelminthes (Round worms) '

Which phylum has tube in tube body plan?

phylum Annelida Tube – within – tube body plan is shown by phylum Annelida. These are the characteristics of Annelida: Free-living, terrestrial or aquatic form (freshwater or marine). The body is long, cylindrical and metamerically segmented.

What is the inside of a ship called?

The hull is the main body of the ship below the main outside deck. The hull consists of an outside covering (or skin) and an inside framework to which the skin is secured….STRUCTURAL PARTS OF THE HULL.

3	Indicates the third deck.
M	Indicates the compartment is used for ammunition (see above).

•Jun 7, 2000

What is hull of the ship?

The hull is the body of a vessel, without taking into account the rigging (ropes, chains, and tackle used to support and work masts, sails, etc.). The structure of the hull is composed of several different parts that will be discussed next.

What is a body plan and features?

What determines the body plan of an embryo?

Another major change crucial in understanding the fundamental organization of the body plan is the lateral folding of the early embryo from three essentially flat, stacked, pancakelike disks of cells (the primary embryonic germ layers) to a cylinder, with the ectoderm on the outside, the endoderm on the inside, and the …