1.4 The diagram below shows the relationships between animal phyla. The letters (A to D) indicate the characteristics shared by the different phyla of animals which are found after the letter. The point where various phyla differ from each other is indicated by the branching-off/split into new phyla. Porifera Platyhelminthes Annelida Arthropoda Cnidarja Chordata D C B multicellular A 1.4.1 What is this type of diagram called? (1) 1.4.2 According to the diagram which characteristic is shared by all the organisms in the (1) animal kingdom? 1.4.3 Which LETTER (A-D) represents each of the following characteristics with respect to the body plan? (Write only the correct letter next to the corresponding question letter e.g. (a) D). (a) Cephalisation (b) Coelom (1) (1) (c) Bilateral symmetry (1) (d) Segmentation (1) (e) Vertebral column (1) 1.4.4 Write down the names of the phyla that display the characteristic represented by A (2) but not the characteristic represented by C (9)​