is the presence of notochord considered as plesiomorphic character chordates? yes or no?

Q: What are the features that result in tunicate’s being classified as an animal, chordate and…

A: Urochordata are also known as tunicates because outer body of tunicates is covered by tunic which is…

Q: Describe two features of each of the two groups ofnonvertebrate chordates.

A: Chordates are the phylum of the animal kingdom in which notochord is found. They have two groups one…

Q: You are a chordate, yet you lack most of the mainderived characters of chordates. Explain.

A: A chordate is an animal of the phylum Chordata. During some period of their life cycle, chordates…

Q: Amphioxus does not possess a vertebral column? yes or no?

A: Amphioxus  They are also known as lanceolate and belonging to the group of invertebrate animals.

Q: Features of Chordates Subphylum Cephalochordata Adult Subphylum Subphylum Urochordata Vertebrata…

A: 1

Q: Mammals are farther removed from echinoderms in phylogenetic alliance as they do with birds. Yet…

A: Birds and Mammals are different from each other in many morphological characters such as body hair,…

Q: One difference between the 'fishapod', Tikaalik, and the early tetrapod, Acanthostega, is... Group…

A: Tetrapod development began approximately 400 million years ago in the Devonian Period, with the…

Q: What shared characteristic supports the surprisingly close relationshipbetween echinoderms and…

A: BASIC INFORMATION  EVOLUTION The theory of evolution was first given by the Jean Baptist de Lamark.…

Q: Why is the madreporite of sea cucumbers internal instead of external like other echinoderms?

A: The madreporite  is made up of calcium carbonate and is covered in pores, looks grooved like some…

Q: How are the 4 chordate synapomorphies evident in a tunicate larva and in an adult tunicate?

A: Although tunicates are classified as chordates, only the larval form possesses all four common…

Q: Name five characteristics shared by all chordates, and explain the primary function of each

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

Q: Name the two groups of nonvertebrate chordates.

A: Non- vertebrate consist of the following two groups:-

Q: How do chordates reproduce?

A: Chordates are the animals that have a notochord, a nerve cord, pharyngeal gill slits and post anal…

Q: Explain the Evolutionary Trends Among the Chordates ?

A: Chordates are the organism that belongs to the phylum Chordata. These possess notochord during some…

Q: What evidence suggests that radial symmetry in echinoderms was secondarily derived?

A: Radial symmetry means that you cut an organism along any diagonal you will get two equal halves of…

Q: What are three derived characters of echinoderms? Describe each.

A: The group of multicellular and heterotrophic organisms belonging to the kingdom Animalia is called…

Q: How do lobe-finned fishes differ from ray-finned fishes, and why were the ray-finned forms unlikely…

A: Lobe-finned fishes and ray-finned fishes are osteichthyes, popularly referred as bony fish . They…

Q: Chordates are grouped with starfish because both are protostomes, true or false?

A: The Correct answer would be False because starfish is neither chordate nor a protostome, it is…

Q: During chordate evolution, what is the sequence (from earliest to most recent) in which the…

A: To find What is the sequence in which the following structures evolved in chordate evolution?

Q: SO you wish to be a chordate do you? Which of the following are not essential to that distinction? O…

A:

Q: Offer a description of an adult tunicate that would identify it as a chordate, yet distinguish it…

A: Chordates belong to the phylum Chordata.The Chordates in their full life cycle have one of the…

Q: Which structure(s) occur ONLY in chordata? (check all of which are true) A. Notochord B. Dorsal…

A: Chordates are phylum of animal kingdom which is bilaterally symmetrical consisting of organ level of…

Q: What evidence suggests that ancestral echinoderms were sessile?

A: Phylum Echinoderms include organisms that are exclusively marine. The have spines that stick out…

Q: Why are echinoderms considered part of the Deuterostomes, despite having incredibly unique…

A: Echinoderms are marine, spiny invertebrates belonging to the phylum Echinodermata, superphylum…

Q: Are ceriantipatherians also known as horny corrals?

A: Cnidarians are the animals which belongs to the phylum cnidarian which under the kingdom animalia…

Q: Explain why are urochordates classified "not true Chordates"? (minimum of 500 words)

A: Various scientist agreed that, at least 42000 species of vertebrates exist today and there have been…

Q: Give three division of chordata in tabular form?

A: The Phylum Chordate includes vertebrates, such as fishes, reptiles, birds, amphibians, reptiles,…

Q: Name five characteristics shared by all chordates, and briefly explain the primary function of each.

A: All animals in the phylum Chordata share five main features ; Notochord Dorsal hollow nerve cord…

Q: Explain why are hemichordates classified "not true Chordates

A: The phylum Hemichordata includes worm-like marine organisms with a proboscis that grows out of the…

Q: Which of the following occurs only in chordates O A. notochord B. pharyngeal gills C. dorsal hollow…

A: Notochord and dorsal hollow nerve cord found exclusively in chordates.

Q: Describe how paedomorphosis as a mechanism could explain the evolution of the chordate body plan…

A: Explanation: Paedomorphosis is a mechanism that can explain the evolution of the chordate body plan.…

Q: explain why the four synapomorphic traits of chordates are not synaphomorphic in the context of…

A: introduction Synapomorphies are characters shared by a group of taxa due to inheritance from a…

Q: What does radial symmetry means? What is the type of symmetry found in chordates? Which are other…

A: The animals are the most abundant living organism that is found in almost every habitat. They have…

Q: Do echinoderms present internal or external fecundation? Is there sex division among individuals?

A: Fecundation, also known as fertilization involves the physical union of the male and female gamete…

Q: Discuss the adaptations of lower chordate in terms of reproduction

A: Lower chordates are organisms which possess a notochord, a dorsal hollow nerve chord, pharyngeal…

Q: What characteristic defines a chordate who is also a vertebrate?

A: The animal kingdom is divided into two phyla- Chordata and non-chordata. The phylum Chordata…

Q: explain phylogenetic tree of ambystomatids salamanders. what does the connections and colors mean

A: Organisms can evolve during their life cycle. Often evolution can be gradual or spontaneous due to…

Q: Identify four derived characters that all chordates haveat some point during their life

A: A  chordate is an animal of the phylum Chordata. Chordates are divided into three subphyla:…

Q: is the group of chordates considered monophyletic? yes or no? why?

A: A monophyletic group, sometimes also called as clade, includes an ancestral taxon and all of its…

Q: What are similarities exist among Lycopods and horsetails? What are some of the differences

A: The kingdom Plantae includes land plants and green algae. Based on the presence or absence of a…

Q: Craniata includes animals within Chordata that have a skull.   True or False?

A: Animals can be grouped into chordates and non-chordates. The chordates have a backbone or notochord.…

Q: What is the most probable primitive condition for eutherian (placental) mammals (node C)?

A: Eutherians are differer from noneutherians by various phenotypic traits of the feet, ankles, jaws…

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: All of the following are derived characters of chordates at least some time in their life EXCEPT…

A: Chordates are the class of organisms that belongs to the phylum chordata. It is a type of phylum…

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 are the two mains divisions of the chordate phylum?

A: Chordates are characterized by a notochord. They have a dorsal hollow nerve cord, pharyngeal slits…

Classification of Marine Organisms

Classification is a way of categorizing organisms that enables an easy process of identification of such organisms. All living things are classified by grouping them under specific categories. The grouping is done based on the close relativeness of the organisms. The classification tool requires knowledge of characteristics, differences, and similarities between different organisms.