What are 5 examples of echinoderms?
4 rows · · The phylum Echinodermata, which contains about 6000 species, gets its name from the Greek, ...
What are four characteristics of echinoderms?
echinoderm (n.) 1834, from Modern Latin Echinodermata, name of the phylum that includes starfish and sea urchins, from Latinized form of Greek ekhinos "sea urchin," originally "porcupine, hedgehog" (see echidna) + derma (genitive dermatos) "skin," from PIE root *der- "to split, flay, peel," with derivatives referring to skin and leather.
What does the Greek word echnoderms mean?
The word "echinoderm" is made up from Greek ἐχινόδερμα, "spiny skin", cf. ἐχῖνος, "hedgehog; sea-urchin" and δέρμα, "skin", echinodérmata being the Greek plural form. The echinoderms are important both biologically and geologically.
Does an echinoderm have a soft body?
What does the name echinoderm literally mean? The phylum Echinodermata , which contains about 6000 species, gets its name from the Greek, literally meaning “spiny skin.” Many echinoderms actually do have “spiny” skin, but others do not. This phylum exists exclusively in the sea, and cannot be found on land or in fresh water.
What does the word echinoderm literally mean?
1834, from Modern Latin Echinodermata, name of the phylum that includes starfish and sea urchins, from Latinized form of Greek ekhinos "sea urchin," originally "porcupine, hedgehog" (see echidna) + derma (genitive dermatos) "skin," from PIE root *der- "to split, flay, peel," with derivatives referring to skin and ...
What does echinoderm mean in Greek Why is this a fitting name?
Echinoderms are named for the spines or bumps covering the outer surface of the bodies of many of them (Greek root word echino- meaning spiny; Latin root word -derm meaning skin). Examples of echinoderms include sea stars, sea urchins, sea cucumbers, brittle stars, and feather stars (Fig.
What is the origin of the word echinoderm?
An echinoderm (/ɪˈkaɪnəˌdɜːrm, ˈɛkə-/) is any member of the phylum Echinodermata (/ɪˌkaɪnoʊˈdɜːrmətə/; from Ancient Greek ἐχῖνος (ekhînos) 'hedgehog', and δέρμα (dérma) 'skin') of marine animals.
What does echinoderm mean in Greek quizlet?
Echinoderm. mean "spiny skin" in Greek. Spiny skin. Greek.
What does the word echinoderm mean quizlet?
Terms in this set (54) What does echinoderm mean? "spiny skin"
What does Asteroidea mean in Latin?
starlikeOrigin. Modern Latin (plural), from Greek asteroeidēs 'starlike', from astēr 'star'.
What does Cnidaria mean in Latin?
nettle, sea nettleNew Latin Cnidaria, phylum name (from Greek knī́dē "nettle, sea nettle"—of uncertain origin— + Latin -āria, neuter plural of -ārius -ary entry 2) + -an entry 1.
Who coined the term Echinodermata?
Echinodermata (e-KI-no-der-MA-ta) is formed from two Greek roots that mean "spiny skin" [spiny -akanthotos (ακανθωτός); and skin -derma (δέρμα)]. The reference is to the spiny nature of most members of this phylum. The formal name was coined by Klein (1734) and referenced by Linnaeus (1758).
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What is an echinoderm?
An echinoderm is an organism (all marine) that has a spiny skin. The word "echinoderm" means "spiny skin." Starfish, sea cucumbers, brittle stars, and sea urchins are examples. Echinoderms also have a water vascular system. Water enters the animal through an opening called a madreporite.
What is the common name for echinoderm?
Echinoderm is the common name given to any member of the phylum Echinodermata (from Ancient Greek, ?χ?νος, echinos – "hedgehog" and δέρμα, derma – "skin") of marine animals.
What are crinoids?
are commonly known as sea lilies, though they are animals, not plants. Crinoids are echinoderms related to starfish, sea urchins, and brittle stars. Crinoids are famous for their feathery, tentacle-like appendages that opened up like a flower and captured particles of food such as plankton.
How do echinoderms reproduce?
Echinoderms reproduce both sexually and asexually. Sexual reproduction takes place by means of sperm and eggs being released into the water where the eggs are fertilized.
What is an invertebrate?
An invertebrate is an animal without a backbone. Invertebrate animals include fruit flies and sea sponges. Your backbone allows you to stand up straight, and it also allows you to be grouped with the other vertebrates: animals with backbones. Invertebrates are the opposite: they have no backbone.
What are the characteristics of the phylum Echinodermata?
Characteristic Features of Phylum Echinodermata These are exclusively marine animals. The larval forms show bilateral symmetry and adult forms show radial symmetry. They are triploblastic. It exhibits organ system grade of organisation. They have a true coelom. The body is uniquely shaped.
What is the phylum of echinoderms?
Echinoderms are a phylum of marine animals. The word "echinoderm" is made up from Greek ?χινόδερμα, "spiny skin", cf. ?χ?νος, "hedgehog; sea-urchin" and δέρμα, "skin", echinodérmata being the Greek plural form. The echinoderms are important both biologically and geologically.
What is an echinoderm?
Any of various marine invertebrates of the phylum Echinodermata, having a latticelike internal skeleton composed of calcite and usually a hard, spiny outer covering. The body plans of adult echinoderms show radial symmetry, typically in the pattern of a five-pointed star, while the larvae show bilateral symmetry. Echinoderms probably share a common ancestor with the hemichordates and chordates, and were already quite diversified by the Cambrian Era. They include the starfish, sea urchins, sand dollars, holothurians (sea cucumbers), and crinoids, as well as thousands of extinct forms.
What is the term for the permanent forms of Echinoderm larv?
He considers the Rotifers to be "the permanent forms of Echinoderm larvæ."
What is the name of the marine animal with a spine?
any marine animal of the invertebrate phylum Echinodermata, having a radiating arrangement of parts and a body wall stiffened by calcareous pieces that may protrude as spines and including the starfishes, sea urchins, sea cucumbers, etc.
What is the phylum of marine invertebrates?
any of the marine invertebrate animals constituting the phylum Echinodermata, characterized by tube feet, a calcite body-covering (test), and a five-part symmetrical body. The group includes the starfish, sea urchins, and sea cucumbers
