Matching Pairs Animals Part TwoOnline version Countinuing characteristics of animals by Isadora Martinez 1 _____ consists of sheets-like structures that are covered in a very thin skin. Fish breath through these structures 2 _______ _______ is responsible for receiving the signals sent by the sense organs 3 The tubes that where susbtances in the circulartory system travel through 4 These cells specialise in transmitting information by electrical signals called nerve impluses. 5 All aninmals that are NOT sponges or cnidarians need_______ _______ which transports substances throughout the body. 6 These type of ograns are receptors. They contain receptor cells 7 Two sponge-like organs made up of million of tiny tubes or aveoli 8 The gravity-sensitive cells of these organs provide information about position and movement of the body Neurons sense organs Lungs Gills Vessels balance organs The nervous system circulartory system