Echinoderms

The Life of a Brittle Starfish The type of marine organism, which will be reported on within the following text, is the Brittle Stars. The Brittle Star is also called the serpent star and a common name for a large group of echinoderms closely related to the starfish. These organisms make up the class Ophiuroidea; another common name for ophiuroidea is snake stars. These organisms can be found in all oceans but are more abundant in the Tropics. Brittle stars can come in different colors. 2

What’s a bat and star combined that lives underwater? The answer is bat star! Bat star, or ‘asterina miniata’ (scientific name) is a marvelous invertebrate. Its scientific name was way too complicated to comprehend, but bat star had another name called ‘patiria miniata’, which meant vermilion dish (scarlet dish). In this animal report, I will be presenting animal anatomy and appearance (bat star’s physical characteristics), classification (what kind of invertebrate bat star is, how I know it, etc

True starfish are classified in the Asteroidea, a group of echinoderms. True starfish have no sharp demarcation between arms and central body, and they move using tube feet rather than wriggling movements of the whole arms. True starfish and ophiuroids shared a common ancestor in the Ordovician. Most starfish are predators, feeding on sessile or slow-moving prey such as mollusks and barnacles. (example: crown-of-thorns starfish, Acanthaster specializes on corals, and may do considerable damage to

Habitat10 Digestive and Excretory Systems11 Circulatory System13 Reproductive System13 Nervous System15 Unique Characteristics of the Sea Cucumber16 Sea Cucumber at Research17 Summary18 Bibliography19 INTRODUCTION The Sea Cucumber is an Echinoderm (Phylum Echinodermata) and is also an Invertebrate. Sea Cucumbers belong to the family “Holothuroidea”. There are approximately 1,150 described species of Sea Cucumber of which most are marine and distributed worldwide. Genus Pseudocolochirus are

Description and Identifying Features This sea cucumber species is easily identifiable by its vibrant yellow color. Some individuals may even have thick, faded gray stripes along the body. They do not grow large in size like some sea cucumbers, but rather grow up to about 2.5-3 inches in length. There are thorn-like protrusions off of their soft, cylindrical body that line five longitudinal ridges of the body thus giving them a pentaradial symmetry. On the underside of the yellow sea cucumber, there

Analysis of “Energy Expenditure Associated With Softening and Stiffening of Echinoderm Connective Tissue.” Echinoderms have a distinguishing feature that appears to be supernatural. They have the ability to rapidly adjust the connective tissue in their body wall from a stiff state to a tensile state within seconds. This seemingly heroic characteristic is called mutable connective tissue and it supposedly functions without much energy loss compared to muscle-mediated systems. Tatsuo Motokawa, Eriko

Black more and Delaney explained mechanical stunning of animals. According to them it is achieved by using Penetrative Captive Bolt or Non-penetrative Percussion Stunning. Neuronal dysfunction and/or destruction, and subsequent insensibility result due to transference of kinetic energy from a moving object to the brain so, the basic principles are the same. Initial observations found that mechanical stunning is humane, except in very large bulls, provided the captive bolt penetrates the skull of

. As a member of the phylum ctenophora, Bolinopsis infundibulum, or commonly known as the Common Northern Comb Jelly, possess the characteristic eight rows of fused cilia that stretch laterally across its sides (Waggoner et al., 1995.) These rows of cilia assist in swimming and are usually referred to as ‘combs,’ which is where the common name for this organism derives from Gelatinous tissue, which is 95% water constitutes the oblong body of the Bolinopsis infundibulum; this is a major impediment

chemicals to protect themselves from being eaten, and some of the chemicals can be used to help treat cancer! There are about 5,000 different species of sponges Echinoderms Fun Facts: Echinoderms don't have any blood An Echinoderm missing an arm can regenerate it back Echinoderms don't have eyes Sea cucumbers, a type of Echinoderm, can communicate by sending hormone signals throughout the water Worm Fun Facts: In as little as 1 acre of land, there can by as many as 1 million earthworms

Eric Ha Biology D 5/11/16 Comparison of Circulatory System between Human and Echinoderm I am going to show the similarities and differences of circulatory system of human and echinoderm. To begin with, I am going to write about the circulatory system of human. There are two types of circulation in circulatory system. First of all, pulmonary circulation is the part of the circulation, which carries oxygen depleted blood away from the heart, to lungs, and back to the heart. At first, in process