Which of the following statements are/is true about Protostomes? 1.Protostomes include mollusks, arthropods and worm phyla. 2.The protostome coelom, or body cavity, forms from a solid cord that has been hollowed out by a process called schizocoely. 3.Ecdysozoans are animals that shed their outer exoskeletons and 4.Lophotrochozoans are animals that possess spiral cleavage and a common larval form 5.The larvae form of the lophotrochozoans are free swimming or planktonic that have locomotive cilia..