Holothuroidea (sea cucumbers) are one of five extant classes that make up the phylum Echinodermata. This is one of the most distinctive and diverse phyla, ranging from starfish to urchins to sea cucumbers and many other organisms. The echinoderms are mainly distinguished from other phyla by their body plan and organization. While the organisms in this phylum may not all look the sam… WebMost of the echinoderms have hard parts and spines for defense, but the sea cucumbers do not. How do sea cucumbers protect themselves from predators? How does the …
Cucumber - Wikipedia
WebEchinoderms frequently use other animals as homes; thousands of brittle stars, for example, may live in some tropical sponges. Sea cucumbers may attach themselves to the … WebJan 31, 2016 · Most echinoderms have visible spines, but the spines of a sea cucumber are tiny ossicles embedded in their skin. For some sea cucumber species, the tiny ossicles provide the only visible clue to the species' identity. The shape and size of these ossicles … Starfish (or sea stars) are beautiful marine animals found in a variety of colors, … Echinoderms—the phylum of invertebrates that includes starfish, sea cucumbers, … The Cnidaria (Cnidaria spp.) is the phylum of animals that contains corals, jellyfish … Dendraster excentricus (Eccentric, western, or Pacific sand dollar) are found in the … One of the most noticeable features of sea stars is their arms. Many sea stars have … They also may have spines and water-filled tube feet for locomotion. Echinoids may … good shepherd st. johnsbury
Why Don’t Supermarket Cucumbers Have Spines Anymore?
Ossicles are small calcareous elements embedded in the dermis of the body wall of echinoderms. They form part of the endoskeleton and provide rigidity and protection. They are found in different forms and arrangements in sea urchins, starfish, brittle stars, sea cucumbers, and crinoids. The ossicles and spines (which are specialised sharp ossicles) are the only parts of the animal likely t… WebMost species are usually 3.9 to 12 inches long. Sea cucumber has elongated, cylindrical body. Depending on the species, sea cucumber can be red, black, blue, green or brown … good shepherd summer camps