what does the word echinoderm mean in greek

by Ariane Farrell Published 3 years ago Updated 2 years ago

echinoderm (n.) 1834, from Modern Latin Echinodermata

Echinoderm

Echinoderm is the common name given to any member of the phylum Echinodermata of marine animals. The adults are recognizable by their radial symmetry, and include such well-known animals as starfish, sea urchins, sand dollars, and sea cucumbers, as well as the sea lilies or "stone lilie…

en.wikipedia.org

, 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.

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. 3.83).

Full Answer

What are 5 examples of echinoderms?

What are 5 examples of echinoderms?

Sea star or starfish (Asteroidea)
Brittle stars, basket stars, serpent stars (Ophiuroidea)
Sea urchins, heart urchins and sanddollars (Echinoidea)
Holothurians or sea cucumbers (Holothuroidea)
Feather stars and sea lilies (Crinoidea).

What are four characteristics of echinoderms?

The phylum Echinodermata is characterized by a number of different traits:

Spiny, bumpy skin
Five-sided radial symmetry
Presence of a water vascular system
Tube feet
Triploblastic embryology (body derived from three embryonic layers, including the ectoderm, mesoderm, and endoderm)
Coelomic cavity (space within the mesoderm that encloses the internal organs)

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What does the Greek word echnoderms mean?

WHAT DOES ECHINODERM MEAN IN GREEK. : any that a phylum (Echinodermata) that radially symmetrical coelomate marine pets including the starfishes, sea urchins, and related develops. You are watching: What does echinoderm mean in greek. echinodermatous i- ˌkī- nə- ˈdər- mə- təs adjective.

Does an echinoderm have a soft body?

Echinoderm ancestors in the pre-Cambrian are also thought to have been soft-bodied with unmineralized plates, which contrasts with all true echinoderms, starting in the Cambrian, who have hard mineralized skeletons which provide structure and protection (Speer, 1999).

What does echinoderm mean in Greek?

spiny skinEchinoderm comes from the Greek language meaning “spiny skin” like the spines on sea urchins.

What does the word echinoderm literally mean?

The phylum Echinodermata , which contains about 7,000 species, gets its name from the Greek, literally meaning "spiny skin." Many echinoderms actually do have "spiny" skin, but others do not.

What does the word echinoderms come from?

Projections from the skeleton, sometimes resembling spikes, which are typical of echinoderms, give the phylum its name (from Greek echinos, “spiny,” and derma, “skin”).

What does the word echinoderm mean quizlet?

Terms in this set (54) What does echinoderm mean? "spiny skin"

Why is the phylum Echinodermata named so?

Echinoderms are animals that are invertebrates. The name actually means spiny skin! All the animals in this phylum exhibit spiny skin and hence are grouped together.

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. Note: The taxon Cnidaria is based ultimately on French cnidaire, a vernacular designation for a sub-class used by H.

What does the name echinoderm mean discuss how this name applies to the different classes of echinoderms?

Echinodermata are so named owing to their spiny skin (from the Greek “echinos” meaning “spiny” and “dermos” meaning “skin”), and this phylum is a collection of about 7,000 described living species. Echinodermata are exclusively marine organisms.

What is the common name for Echinodermata?

Echinodermata - Sea urchins, Sand dollars, Sea cucumbers, Seastars, Cushion stars, Brittle-stars, Basket-stars, Sea lilies, Feather stars -- Discover Life mobile.

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