What is the sister group to the Tetrapoda clade?

Q: Describe the role of pisces and tetrapoda?

A: The superclass Pisces are the truly jawed vertebrates, which have organs of respiration and…

Q: three examples of species of cnidarians

A: Cnidarians are distinguished from all other animals by having cnidocytes that fire harpoon like…

Q: What features make placozoans interesting from a phylogenetic perspective?

A: The phylum Placozoa is a basal form of free-living multicellular organism. It consists of a small…

Q: What character unites members of clade Gnathifera?

A: There exist different types of organisms that are placed according to the characteristic features…

Q: = phylogeny of tetrapods.

A: Synapomorphies is a character or trait that is shared by two or more taxonomic groups and is derived…

Q: What is phylum-echinodermata with its diagram?

A: The phylum Echinodermata belong to the animal kingdom. The members of this phylum have endoskeleton…

Q: What are the features of sponges ( Phylum Porifera) and can they be classified as being apart of the…

A: Sponges are primitive multicellular animals. They are aquatic, generally marine but a few are found…

Q: Why are porriferans asymetrical? Cnidarians radial? The rest bilateral? (based on evolution)

A: It is required to provide the reason for assymetrical nature of poriferans, radial symmetry of…

Q: What is the main evolutionary innovation presented by nematodes? What is the advantage of that…

A: Nematodes are bilaterally symmetrical, elongated organisms which play a vital ecological roles as…

Q: How are the valves of a brachiopod oriented in terms of the dorsalventral axis?

A: Brachiopods belong to the Phylum Brachiopoda, which is a monophyletic group. These organisms are…

Q: Describe and contrast the tegument of most turbellarians and the other classes of Platyhelminthes.…

A: Turbellarians do not have a tegument but have a cellular, ciliated epidermis resting on a basement…

Q: What material is found in the skeleton of all sponges?

A: Sponges are members of the phylum Porifera. Sponges are a multicellular organism that has bodies…

Q: What structural system is unique to the phylum Echinodermata?

A: Echinoderms:              Marine invertebrate animals characterized by a hard, spiny covering or…

Q: What is unique about the madreporite of sea cucumbers (class Holothuroidea)?

A:

Q: What era did Australopithecus afarensis evolve?

A: It is required to identify the era in which Australopithecus afarensis evolve.

Q: How would you explain a sub-surface horizon that had the properties of an epipedon? Or an epipedon…

A: The loose covering of earth that covers the planet's surface is referred to as "soil," which is a…

Q: Which of the following is not a synapomorphy of craniates?

A: Craniates are a group of chordates that includes many organisms that have a cranium or a braincase.…

Q: What is the only difference between a fish and tetrapod

A: The change in the heritable characteristics of the species across many generations is called…

Q: Are there economically important species of hexapods and myriapods?    What is their overall…

A: Hexapods  They are the six legged animals such as butterfly, bees, housefly etc.

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: Difference between pseudocelomates and acoelomates?

A: Coelom is the chief body cavity of animals. It is present inside the body to surround and contain…

Q: Which of the following is NOT a tetrapod? Group of answer choices Lungfish Snake Legless lizard…

A: Gnathostomes are group of vertebrates , which have jaws . this division is divided into pisces and…

Q: How are nematodes and nematomorphs alike, and how are they different?

A: Ecdysozoans are a group of protostome animals that include nematodes, arthropods, and numerous…

Q: What factors support the placement of phoronids and brachiopods as sister taxa?

A: The tree phyla-Phoronida, Ectoprocta, and Brachiopoda-possess a crown of ciliated tentacles, called…

Q: What is the other name of sphenopsida?

A: Pteridophytes are plants that do not have any flowers or seeds. Another name for pteridophytes is…

Q: what phylum in animal kingdom is now reclassified as a family?

A: Biology, a phylum  is a level of classification or taxonomic rank below kingdom and above classes.…

Q: What are some adaptive advantages of a pseudocoel compared to the acoelomate condition?

A: In animals the body cavity (coelom) is the area or free space that contains all the organs suspended…

Q: What is the group of the phylum Chordata that first colonized the terrestrial environment? From…

A: Chordates have the following characteristics- Notochord ventral nerve cord pharyngeal gill slits…

Q: Which group of echinoderms usually posses pentameric antimeres but some species may have more? A.…

A: Echinodermate's term was coined by J. Klein. These are exclusively marine organisms falling in the…

Q: Which statement best describes the symmetry of brachiopods compared to bivalves?     Both…

A: Brachiopods are organisms belonging to Phylum Brachiopoda and  bivalves belong to Phylum Mollusca,…

Q: Are all ‘choanates’ also amniotes?  Are all amniotes in the group Choanata?

A: Introduction: Any animal affiliated to the subfamily Vertebrata, the most common subphylum of the…

Q: Why was the medusa stage lost in some cnidarians? Do you think it is more advantageous

A: Solution : In the phylum Cnidaria, which includes jellyfish and sea anemones, polyp and medusa are…

Q: Describe and contrast the tegument of most turbellarians and the other classes of platyhelminths.…

A: Phylum Platyhelminthes includes four classes namely Turbellaria, Trematoda, Monogenea, and Cestoda.…

Q: What characteristics distinguish Branchiopoda, Ostracoda, Copepoda, Thecostraca, and Malacostraca?

A: The phylum Arthropoda has ten sub-classes namely, a) Euchelicerata b) Chilopoda c) Diplopoda d)…

Q: Match the following groups under Phylum annelida to the following characters: Match each item to a…

A: The phylum annelida comprises worms with body walls covered with a cuticle; chitinous setae are…

Q: What are examples of the following groups of vertebrates: Chondrichthyes, Actinopterygii,…

A: The vertebrates are a group of animals that have a spinal cord that is enclosed by cartilage or a…

Q: Which phylum is characterized by a hard, flexible exoskeleton and multiple life cycles?

A: Ans. Animals from the biological Animalia kingdom, are multicellular eukaryotic organisms. Animals…

Q: Which of the following lineages is NOT comprised of amoebas? O Cellular slime molds O Cliates Forams…

A: Twp different groups of the protozoan parasites are :  1. Amoeba 2. Ciliates

Q: How is the biology of onychophorans related to their distribution?

A: Comparative anatomy is the study of the "similarities and dissimilarities" between various objects.…

Q: What is the following specimen? Our invertebrate zoology professor told us there is a bryozoan on…

A: It is a Bryozoa which is commonly called as Moss animal, they are also called as Ectoprocta and…

Q: What do fossil tetrapods tell us about the transition from water to land?

A: The animals that have 4 limbs are known as tetrapods and constitute the superclass Tetrapoda which…

Q: What is a radula and what is its function?  What is a mantle and what is its function

A: Given: Need to define radula and it's function Need to define mantle with it's function.

Q: What habitat is shared by micrognathozoans and gnathostomulids?

A: Members of two of the bilaterally symmetrical triploblastic phyla have acoelomate bodies. A coelom…

Q: What is the reason for saying that sponges are closely related to, and probably evolved from,…

A: Sponges, which belong to the phylum Porifera, are a sister group to the Diploblasts and are a…

Q: provide an example of homologous traits shared by most tetropods.

A: Tetrapods involve a group of organisms that have four limbs or they're descended from tetrapod…

Q: Describe the origin of tetrapods and identify some of their keys derived traits

A: Tetrapods are four limbed animals . Animlas such as the amphibians, reptiles and mammals with four…

Q: What is the number of shells each organism has (Cephalopoda Scaphopoda)?

A: Shell or seashell is a hard protective layer formed by an animal that lives in the sea. Shell is…

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.