Match the following groups under Phylum annelida to the following characters: Match each item to a choice: Branchiobdellida Hirudenea Acanthobdellida Oligochaeta Polychaeta Choices: E Loss of remaining setae; 34 metameres : Anterior body sucker; 15 metameres : Presence of clitellum; but without superficial annuli : Posterior body sucker; 30 metameres : Parapodia; complex head

Q: Review the extent of segmentation in Polychaetes, Leeches, Siboglinids, Echicrans, and Sipunculans.

A: Hi! Thank you for the questions. As you have posted multiple questions, I will be answering the…

Q: DEUTEROSTOMIA Chordata Chordata V [Choose ] Endostyle Anus forms at or near the site of the…

A: Blastopore :-  It is a pit in the side of the embryo, through which cells destined to be endodermal…

Q: Flatworms have no coelom. Recent gene sequencing shows that their closest relatives are the rotifers…

A: Coelom is the fully functional body cavity that is lined by mesoderm. Within the coelomic cavity,…

Q: Discuss the ecological importance of trematodes.

A: Introduction Trematoda is a subphylum of the Platyhelminthes phylum. It consists of two types of…

Q: Define "synapomorphy" and "symplesiomorphy".

A: Animals are classified on the basis of similarities and dissimilarities. Cladistics recognises two…

Q: What structure differentiates Ectoprocts and Brachiopods from other Lophotrochozoa?

A: The animals are multicellular eukaryotes with heterotrophic nutrition. The unicellular are protozoa,…

Q: Define phylum-hemichordata with its stucture?

A: Phylum Hemichordata contains marine deuterostome animals. Hemichordata is a sister group of phylum…

Q: features that suggest the Cnidaria and Ctenophora share. Outline the features that distinguish these…

A: Cnidaria and Ctenophora are two phyla belonging to the kingdom Animalia. Cnidarians are named so…

Q: Describe characteristics of phylum Platyhelminthes and its subgroups by discussing similarities and…

A: The phylum Platyhelminthes includes a variety of worm-like organisms that share some common…

Q: Planarians Whats the similarties and differences between planaria and the hydra and obelia. Mention…

A: Since you have asked multiple questions, we are eligible to answer only one question. Kindly repost…

Q: Define the following terms that relate to the sponges: Spongocoel: Osculum: Choanocytes:…

A: Sponges are one of the simplest multicellular organisms that occur in the animal kingdom. They are…

Q: What characters unite rotifers and acanthocephalans as members of clade Syndermata?

A: Animal phylogeny is a rapidly changing field for the biologists. Even if the members of animal…

Q: Unifying features include shell, mantle, radula, foot, visceral mass Which classes show a loss of…

A: Mollusca is the  second largest phylum of the invertebrate animals.  Answer;1    The mollusk (or…

Q: ney 2. They possess both male and female reproductive organs. 3. The outer body layer of an organism…

A: Phylum porifera consists of organisms that are cellular grade  and have pores in their body.There…

Q: What characteristics of phylum Annelida distinguish it from other phyla?

A: Annelida is a phylum of triploblastic, coelomates worms which have a bilateral symmetry and…

Q: In the tree below, which taxon is most closely related to the Pseudergolinae?

A: The correct answer is option D. Cyrestinae. From the phylogenetic tree given here, we can say that…

Q: 1. Where do Loricifera fit into a phylogeny? Explain with an image. 2. What is a body plan of…

A: Phylogeny is the study of a species' evolutionary history. The phylogenetic tree is a tree-like…

Q: What is the sister group to Innovatiocaris maotianshanensis?   The phylogeny shows that some named…

A: A clade is defined as a group that contains all the descendents of a common ansector thus forming a…

Q: Give 1 example of fish species displaying the listed skin structure. Provide both the Scientific…

A:

Marine Evolution

Marine habitat is less explored, and hence, its biological diversity is far less known. The marine habitats are not constant due to their shifting nature, while the terrestrial habitats are more stable. Marine biology is the science that deals with the study of diverse marine species, their interactions, and behavioral characteristics.