Which of the Following Describe S Echinoderms

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Which of the following echinoderm groups was much more abundant in the past than it is today. Explain what characteristics you used to classify the animal.

Echinoderm Definition Characteristics Examples Biology Dictionary

First they all possess five-part radial symmetry around a central disk.

. C They have a pseudocoelom. This phylum is divided into five extant classes. Echinoderms having suctorial podia tube.

C They have a pseudocoelom. D Only A and B are true. The phylum contains around 70001 explained living species such as sea stars sea cucumbers sea urchins sand dollars and also brittle stars.

That means the anus develops first in the organism. Second they all possess a very unique water vascular system vascular system based on water. There are three classes of deuterostome namely.

Deuterostome are species which are bilalteral in structure and the first embryonic opening becomes the anus. Asteroidea sea stars Ophiuroidea brittle stars Echinoidea sea urchins and sand dollars Crinoidea sea lilies or feather stars and Holothuroidea sea cucumbers. Madreporite or sieve plate is a small smooth plate at the entrance of starfishs water vascular system throu.

This phylum is divided into five classes. In Crinoidea the polian vesicle and Tiedemanns bodies are absent. The organisms are spiny-skinned.

E A B and C are true. D sea urchins and sand dollars. They have a star-like appearance and are spherical or elongated.

The most well-known echinoderms are members of class Asteroidea or sea stars. D Only A and B are true. On a separate sheet of paper discuss each of the following statements in a brief paragraph.

None of the choices Section. Echinoderms are members of the phylum Echinodermata which is a group of marine animals. D Only A and B are.

The bodies of the echinoderms are usually symmetrical radially. E A B and C are true. View the full answer.

Correctly label the following diagram to describe the anatomical parts of an echinoderm. Echinoderms are gregarious animals and usually live in large groups. Which of the following describes echinoderms.

C They have a pseudocoelom. D System of internal skeleton. From the invertebrate phyla Echinodermata is the only one which is deuterostome like chordates.

They exhibit organ system level of organization. C They have a pseudocoelom. All echinoderms share several common characteristics despite very dissimilar outward appearances differentiating them from all other members of the animal kingdom.

They are mostly nocturnal. D Only A and B are true. Describe the main differences between gastropods bivalves and cephalopods with regard to their.

Perhaps the best-known echinoderms are members of the class Asteroidea or sea stars. The sizes of Echinoderms are relatively moderate. The name echinoderm derives from the Greek words for hedgehog - yes the spiny animal.

The body actually consists of five equal segments each containing a duplicate set of various internal organs. 18 Which of the following describes echinoderms. Yeah that could be the reason that people often use idioms and phrases where dumb is often compared to starfishes which are a category of echinoderms.

The term is derived from Greek words which mean spiny skin. A They have an endoskeleton of hard calcareous plates. Echinodermata are named for their spiny skin from the Greek echinos interpretation spiny and dermos interpretation skin.

Nerve net describes the nervous system of a. The most common one being of the starfishs ability to regenerate. A They have an endoskeleton of hard calcareous plates.

E A B and C are true. Echinoderms include sea stars or starfish sea lilies sea cucumbers sea urchins and sand dollars. They are bottom feeders and eat all sorts of food available in the sea bottoms.

Use a separate sheet of paper if you need more space. The echinoderms are related to chordates by their similarity in the development of. Asteroidea sea stars Ophiuroidea brittle stars Echinoidea sea urchins and sand dollars Crinoidea sea lilies or feather stars and Holothuroidea sea cucumbers Figure.

Most of them are carnivorous but several herbivorous forms are also known. B Tube feet provide motility in most species. Echinoderms are characterized by radial symmetry several arms 5 or more mostly grouped 2 left - 1 middle - 2 right radiating from a central body pentamerous.

The locomotory organs of Echinoderms are called. Functions of the Water Vascular System. Which of the following describes echinoderms.

They are exclusively marine animals. B Tube feet provide motility in most species. Echinodermata are exclusively marine.

The Echinodermata phylum has about 7000 species representing all types of marine habitats except fresh-water and land-based terrestrial habitats. The water vascular system present in echinoderms accounts for gaseous exchange circulation of nutrients and waste elimination. The main function of the water vascular system is to help in locomotion.

5 Regeneration is a common characteristic of echinoderms. Which of the following systems is found in echinoderms. A They have an endoskeleton of hard calcareous plates.

Echinoderms include sea urchins sand. Skin gills Stomach Book lungs Tube feet Coelom Sieve plate Reset Zoom. B Tube feet provide motility in most species.

Echinodermata Digestive System Video Lesson Transcript Study Com