Sponges No true tissues Cnidarians Radial symmetry Ancestral protist Molluscs Figure 17.6 An overview of animal phylogeny. Only 9 of the more than 30 animal Flatworms Tissues Annelids phyla (the exact number is not agreed upon) are included in the tree and in the text. The branching takes into account the Roundworms body plan, embryonic development, and genetic relationships of the organisms. Arthropods Bilateral symmetry Echinoderms Chordates

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: Mindoro Black Rat (Rattus mindorensis) Explain the following taxon of this animal: Kingdom -…

A: The Mindoro dark rodent (Rattus mindorensis) is a types of rat in the family Muridae. It is tracked…

Q: What is the function of including an outgroup in this phylogeny? After all, the point of the…

A: An outgroup is a lineage that falls outside the clade being studied but is closely related to that…

Q: (6a) Please draw a phylogeny that shows relationships between the following groups: Haikouicthys…

A: Phylogeny is a mechanism to identify the relationship or arrangement of organisms according to their…

Q: fishing net brings up a soft bodied animal with a coiled external shell. How can you determine…

A: Cephalopods are only found in the ocean, whereas gastropods are mostly found on land, with a few…

Q: How are the Protochordates the link between the invertebrates and the vertebrates? Discuss its…

A: Given: The Protochordates the link between the invertebrates and the vertebrates.

Q: List the evidence that biologists use to classify earthworms,caecilians, and snakes in different…

A: Answer- In animal kingdom the organisms are placed according to different phylums. Each phylum…

Q: Which are the beings that form the kingdom Animalia? What are the two big groups into which this…

A: Living organisms are classified into kingdoms based on the common anatomical and physiological…

Q: List the predominant body plan (acoelomate, pseudocoelomate, or coelomate) for members of each…

A: Protostomes refers to a group of animals that have bilateral symmetry that is body is divided into…

Q: According to our class phylogeny, which of the following animals is most evolved? tortoise whale…

A: Here we are given the list of animals and it is required to find out which animal is most evolved.…

Q: Consider the table shown below: Class Mammalia Mammalia Mammalia Mammalia Mammalia Superorder…

A: There are seven major ranks in taxonomy: kingdom, phylum, division ,class ,order , Family , genus ,…

Q: How would a phylogenist classify a group that spans across several clades?

A: A diagram that shows evolutionary relationship between different species is known as phylogenetic…

Q: Why are embryological features important for distinguishing the major groups of phyla?

A: Taxonomy is the branch of biological sciences that deals with the identification and classification…

Q: Create a body plan table (Insert → Add Table) for the following animal phyla: Porifera, Cnidaria,…

A: Coelom can be defined as the principal body cavity that is present in most animals. It is located…

Q: What is a plausible scenario for evolution of wings and flying insects?

A: Evolution is the natural process where is a change in the heritable characteristics of biological…

Q: Figure 12.3 In what levels are cats and dogs considered to be part of the same group?

A: Taxonomy is the study of different organisms and their features by putting them or classifying under…

Q: In the following relationship tree, which of the organisms are most closely related?

A: Phylogenetic trees give us an idea about the relationship between different organisms. A…

Q: Go to the PubMed website and search the words epigenetic and cancer.Scan through the journal…

A: Ans: Epigenetics: It is the study of heritable changes in expression of genes without changing the…

Q: previously undiscovered sea creature that appears to represent a new phyla. It happens to have…

A: The mouth develops first, and it goes through several larval stages in which it molts and regrows…

Q: Make a cladogram of vertebrates.

A: Introduction : The Graphical Representation Of The Potential Relationship (phylogenetic…

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: Draw a phylogenetic diagram showing only the interrelationships among the following clades:

A: Phylogenetic interrelationship among the given clades.:

Q: why is determinatoin of evolutionary relationships among different invertebrate phyla important?

A: Determination of evolutionary relationships among different invertebrate phyla important because it…

Q: Create a cladogram summarizing the phylogenetic relationships among the different phyla. Phyla:…

A: Thank you for the question Answer : In evolutionary biology, the organisms belonging to different…

Q: What environmental condition may have contributed to the Cambrian explosion?

A: (Kindly note you can post 1 Question or its 3 sub-parts at once. Since you have posted different…

Q: Flight evolved two times among the animals in this phylogenetic tree; once in birds, and once in…

A: Homologous characters   These are defined as the body parts of species that have similar…

Q: The following four line drawings are reconstructions of invertebrate fossil. Using your knowledge of…

A: Invertebrates are complex multicellular organisms that lack backbones. Invertebrates are the most…

Q: Which of the following statements regarding the diversification of animals is supported by the…

A: Biodiversity improves ecosystem productivity by allowing each species, no matter how little, to play…

Q: Ray-finned fish Rodents & rabbits Crocodiles Birds Sharks Amphibians Primates Hair Eggs with shelle…

A: The phylogeny tree is given in the image. It depicts the relationship between the taxons present in…

Q: Which of the following taxa of fish shared most direct common ancestry with the group of animals…

A: The group of animals that evolved into terrestrial tetrapods (four-limbed vertebrates) had their…

Q: What are the characteristics of all birds? Why do we assume they were a branch of reptilia?

A: Evolution is the change in the characteristics of a species over several generations and relies on…

Q: Pisces Osteichthyes (bony fishes) Sarcopterygii (lobe-finned fishes) mata atha) Tetrapoda Amniota…

A: Monophyletic taxonomic group is one that has Category of organisms descended from one ascendant ,…

Q: Show the diagramatic form in animalia kingdom?

A: The members of the kingdom Animalia are also known as metazoa. It includes multicellular and…

Q: Which of the following taxa includes myriapods that are wingless terrestrial mandibulate arthropods…

A: The question delves into identifying the taxonomic classification encompassing wingless terrestrial…

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: Make a list of all animal life phylum's that are known(with names ). Give description of recent two…

A: Animals are eukaryotic, multicellular, species having a place with the Kingdom Animalia. Each animal…

Q: Which phyla did you not expect to be grouped together based on their morphology? How could…

A: Introduction  Systematics is a branch of biology that deals with classifying and cataloging animals…

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.