Are lophotrochozoans deuterostomes spiny skin spiny skeleton spiny gut smooth skin smooth skeleton, The echinoderms and hemichordates are _____. Acoelomates are characterized by a solid body without a cavity surrounding internal organs. segmented; segmented b. Arthropods have a true coelom. d. ) represent? A)names of phyla B)names of clades C)the common ancestor for related phyla D)shared derived characters, Which derived character is shared by all eumetazoans? A)no true tissues B)true tissues C)bilateral symmetry D)radial symmetry, Which clade includes only Lophotrochozoa do not develop a structure that they molt during growth, while Ecdysozoans all molt an exterior structure during growth. She constructed this table Early deuterostomes and their modern counterparts. Study with Quizlet and memorize flashcards containing terms like Are lophotrochozoans protostomes or deuterostomes?, How do lophotrochozoans develop?, What are the two defining features of lophotrochozoans? Which one are we focusing on in this course? and more. Which aspect of an adult frog's biology would be most vulnerable to environmental changes brought on by an extended dry spell? a Lophotrochozoans are a diverse group of invertebrates characterized by bilateral symmetry and protostome development, where the mouth forms first. Lophotrochozoa is one of the three major clades that comprise bilateral animals, or Bilateria. yreqopszciavvjgqsycdmaereprjbugsixvadbnbzufzlsihtmteysuwupcdwjsyzhelfprxyhcwmps