Which of the following is not possible? a. radially symmetrical diploblast b. diploblastic eucoelomate c. protostomic coelomate d. bilaterally symmetrical deuterostome

Q: Please define and explain: Coelomates Acoelomates Pseudocoelomates

A: Coelom is an empty space exhibited just in between wall of Alimentary canal and wall of body .…

Q: Members of the subclass Actinopterygii make up 95% of vertebrate species and have the following…

A: Zoology is a branch of biology that deals with the study of animals which can be both terrestrial…

Q: Nereis is not characterised by presence of a.Monoecious condition b.Ventral, paired, solid nerve…

A: Each body segment of Nereis has a pair of fleshy, lateral appendages called parapodia. They have a…

Q: Members of which of the following classes are examples of vertebrate animals that are not amniotes?…

A: Vertebrate animals can be grouped into two categories based on the presence or absence of certain…

Q: 30. Class Aves evolved from Jurassic dinosaurs belonging to which of the following chordate groups?…

A: The birds or the aves were cosidered to be evolved fromthe jurassic dinosaurs of clade Therapoda.…

Q: Coelomates have an enclosed coelom completely lined with mesodermally derived tissue. Accelomates…

A: Triploblastic animals are animals with a body cavity and body plan, where their body cavities are…

Q: Annelids have (a): a. pseudocoelom. b. true coelom. c. no coelom. d. none of the above

A: Answer is b.)  true coelom.

Q: Which of the following is the correct classification for this chordate animal: This vertebrate…

A: Amphibians are cold blooded verte­brates having a smooth or rough, naked skin, rich in glands, which…

Q: Which of the following would be found in a sea urchin (phylum Echinodermata)? A. A dorsal hollow…

A: Sea urchins belong to the phylum Echinodermata, which posses radial symmetry. It includes star fish,…

Q: For Phylum Mollusca, Class Cephalopod 1. Organ/system characteristics. Answer the following for each…

A: Mollusca is a phylum of invertebrate animals with over 100,000 species. They have soft, unsegmented…

Q: With Platyhelminthes, which of the following do we see for the first time, evolutionarily speaking.…

A: Platyhelminthes are the flat worms. They are found in the animal kingdom.

Animal Phylogeny

Cladistics is a method of biological classification where organisms are classified based on their ancestors and their relationship with them. It is defined as the concepts and methods for determining the branching patterns of evolution and evolutionary history. Some scientists, however, have preferred the term phylogenetic systematics or phylogenetic taxonomy to emphasize the reliance on a phylogeny for classification. It is the most common and accepted method for classifying organisms.