MAKE CONNECTIONS Many new animal body plansemerged during and after the Cambrian explosion. Incontrast, cnidarians today retain the same diploblastic,radial body plan found in cnidarians 560 million yearsago. Are cnidarians therefore less successful or less “highlyevolved” than other animal groups? Explain.(See Concepts 25.3 and 25.6.)

Q: Find an animal on the phylogenetic tree and classify it as either ecdysozoa or lophotrochozoan?

A: Ecdysozoa is a group of protostome that shed exoskeleton throughout their lifespan. Nematoda and…

Q: (a) State two advantages of cephalisation (b) Outline the advancement features of reptiles that…

A: Cephalization is the differentiation of the anterior end of an organism into a definite head. This…

Q: Skull parts are represented in only___ of the more than 100 genera of sauropods. (A) 20 (B) 24 36 D)…

A: A clade of saurischian dinosaurs, the sauropoda is referred to as sauropods. The features of…

Q: 42.Ammonites are the dominant form of cephalopod in the Jurassic Select one : True False

A: Ammonoids are a group of extinct marine mollusc animals in the subclass Ammonoidea of the class…

Q: Detail one of the historical periods (pre-Cambrian, Cambrian, or post-Cambrian) of animal kingdom…

A: The Geologic Time Scale (GTS) is a system of chronological arrangement or sequence of geologic…

Q: Members of which of the following classes are endothermic, amnionic tetrapods? --all of the classes…

A: Endothermic creatures are those which are able to regulate the temperature of their bodies. They…

Q: Approx how many mass extinction events occurred throughout the evolutionary history of animals

A: Biodiversity is the diversity of biological life forms present in three forms of genetic,…

Q: Taphonomy tells us ab0ut preservati0n biases in the fossil rec0rd. What kind of biases affect 0ur…

A: Taphonomy refers to the branch of paleontology (study of life history based on fossils) which is…

Q: Euparkeria lived during which time period * O Ordovician O Triassic O Cretaceous Paleocene Jurassic

A: There are different areas that are divided on the basis of life and the existence of different…

Q: Vertebrate phylogenetic tree P jawless cartilaginous bony fish fish Amniotic egg Lungs Four limbs…

A: A branching graph or tree known as a phylogenetic tree illustrates the evolutionary connections…

Q: Ammonites are the dominant form of cephalopod in the Jurassic Select one : True False

A: Ammonites are the mollusc found in marine environment. They belong to the class Cephalopoda and…

Q: Propliopithecids vs. Parapithecids. Adapids and Omomyids. Dryopithecus and Oreopithecus. With the…

A: Primates are social creatures that live in various sized groups. They communicate with one another…

Q: Animals that have an anterior and posterior end are said to be_______ . The anterior end of such…

A: Animals that have an anterior and posterior end are said to  be cephalized.  The anterior end of…

Q: The Cambrian explosion is a conundrum: how can the long prior history of the phyla, revealed by…

A: Evolution is change in the heritable qualities of natural populaces over progressive ages. These…

Q: MAKE CONNECTIONS Historically, annelids and arthropods were viewed as closely related because both…

A: Annelids are invertebrate organisms placed in phylum Annelida. They are segmented worms and also…

Q: Bilateral symmetry is a(n) A B C synapomorphic ancestral claws derived analogous - trait for the…

A: A phylogenetic tree is a diagram demonstrating the evolutionary connections between a group of…

Q: describe the four distinguishing characteristics of chordata a d the structural, functional, and…

A: "Since you have posted more than one question at a time, we will provide the solution only to the…

Q: 5. Archosaurs are distinguished by what common ancestral trait? opening 6. You may exit the Hall of…

A: DISCLAIMER FOR MULTIPLE   Since you have asked multiple question, we will solve the first question…

Q: Develop a hypothesis that explains the origin of sponge skeletons (i.e. why did sponges develop…

A: Sponges are aquatic organisms which are multicellular and belong to the phylum Porifera. Their…

Q: Nimravids Skeleton vs Siberian Tiger Skeleton vs Smilodon Necator Skelton Compare and contrast the…

A: Nimravids are a group of extinct carnivorous mammals that lived from the Eocene to the Miocene epoch…

Q: Fossils reveal that __ are the fish organisms with bony skeletons

A: Scientists group fish into three main types. They are divided into these groups because of the…

Q: The fossil cephalopod has a calcareous shell and a squid-like body that would extend out of the…

A: Anatomy is the branch of biology that deals with the study of the structure of organisms and their…

Q: egmentation O Can be fused into specialized functional regions Is seen in insects, worms, and their…

A: The sequence repetition of similar organs, tissues, cell types on different body segments placed on…

Q: Why is animal evolution during the early Cambrian referred to as an “explosion”?

A: The evolution during the early Cambrian referred to as an explosion. Here we will discuss why it is…

Q: Is the tree rooted or unrooted? Justify your answer and describe the character of the outgroup…

A: A cladogram is a tree-like representation which shows the relationships that organisms share and…

Q: EVOLUTION CONNECTION The history of life has beenpunctuated by several mass extinctions. For…

A: An organism is a living thing. It has an organized structure, can grow, react to stimuli, adapt,…

Q: Lungs allow an animal to breathe _____________. Why did this adaptation evolve?

A: The simple aquatic organisms had gills to breath while the later evolved and adapted organisms have…

Q: Which of the following things is/are true about this organism? Phylum Chrodata Subphylum Vertebrata…

A: This organism is Lancelet.  Diagrammatic view of lancelet internal structure. Classification of…

Q: Skull parts are represented in only of the more than 100 genera of sauropods. (A) 20 (B) 24 36 (D)…

A: Answer :- The vast, herbivorous sauropod dinosaurs, which flourished during the Mesozoic Era, are…

Q: Cartilaginous fishes made their first appearance in the fossil record between 444 and 419 MYA, which…

A: The biological time scale is defined as the framework used by biologists to analyse and understand…

Q: Find the animal on the phylogenetic tree and classify it as either protostome or deuterostome, and…

A: Animals that undergo protostome during their embryonic development are called as Protostomes.

Q: In 1798, a stuffed platypus specimen was delivered tothe British Museum. Reports that it laid eggs…

A: Amniotes are described as the vertebrates that have a tendnecy to develop embryo in the amnion.…

Q: VISUAL SKILLS Based on this phylogeny,are pterosaurs dinosaurs? Are birds? Explain.

A: Pterosaurs are referred to as the extinct flying reptiles that belong to Pterosauria. They were…

Q: Sponges A Cnidarians Ancestral colonial protist Flatworms Molluscs B Annelids Nematodes E Arthropods…

A: Tissue is a collection of cells with similar structures that work collectively as a unit.

Q: TRUE OR FALSE  1. The fossil record provides a sweeping overview of the history of life over…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: which chaachteran (s) difforentlates extnt cyebstene fromextent cartildginaus Aish…

A: Cyclostomes is group or class of vertebrates which contains the living jawless fishes for example…

Q: Make list of all animal life phylum's that are known (with name) Give description of recent phlya

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

Q: Imagine you come across a gelatinous animal with a Medusa body plan. Determine whether it is a class…

A: Apart from mammals or vertebrates, invertebrates cover a major portion of the animal world.

Q: Question 15 Which statement about chordates is ACCURATE? O Not all vertebrates have a distinct head.…

A: Chordates are a diverse group of animals that are defined by certain shared characteristics. These…

Q: none compresive What is the sequence of the important major steps in the evolution of the animal…

A: The evolution of the animal kingdom is a complex and ongoing process that spends billions of years.…

Q: ses, tapirs, rhino-

A: A phylogeny or the phylogenetic tree is a diagrammatic representation of the evolutionary descendent…

Q: wo key differences between the australopithecines and members of genus Homo

A: Introduction Australopithecus:- It is a genus of early hominins that existed in Africa during the…

Q: PHYLOGENETIC ANALYSIS: Refer to the phylogenetic tree. Write your answers for the following, phrase…

A: 1. Yes, Protostomes are primitive invertebrates while deuterostomes include chordates and…

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.