MAKE CONNECTIONS Historically, annelids and arthropods were viewed as closely related because both havebody segmentation. Yet DNA sequence data indicatethat annelids belong to one clade (Lophotrochozoa) andarthropods to another (Ecdysozoa). Could traditionaland molecular hypotheses be tested by studyingthe Hox genes that control body segmentation (seeConcept 21.6)? Explain.

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: 9. Determine how many standard donuts a 70 kg person should eat after playing basketball for 2 h to…

A: The quantity of dietary energy required to balance calorie expenditure in order to sustain body…

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: Sponges from the phylum Porifera ... [choose the incorrect response}   Question 29 options:   have…

A: Introduction Sponges are the member of the phylum porifera. They are multicellular organism. They…

Q: Cnidocytes (a) are characteristic of sponges (b) are found among cells lining the gastrovascular…

A: The group of eukaryotic and multicellular organisms that are heterotrophic and belong to the kingdom…

Q: Cuttlefish pen (invertebrate endoskeleton) is composed of (a) chitin (b) collagen (c) calcium…

A: The phylum mollusca (invertebrates) shows the presence of shell. The shell may be internal or…

Q: Dogfish sharks (Squalus acanthias) represented  “primitive” gnathostomes and cats (Felis catus)…

A: Anatomy is a branch of biology concerned with identifying and describing living organisms' bodily…

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: Which of the following characteristics are present in Vertebrates? Choose all that apply. O…

A: 1) Triploblastic : Triploblastic animals are those in which the the blastoderm layer divides in…

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: Where do invertebrates fit into the evolution history of eukaryotes? Of animals?

A: The study of relationships between distinct groups of species and their evolutionary development is…

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: List the criteria used to distinguish: (a) animals from other organisms; (b) vertebrates from…

A: Ans: The criteria used to compare and differentiate different living systems as mentioned in the…

Q: How did the diverse feeding appendages of arthropods arise?

A: Arthopods are invertebrate animals having an exoskeleton, a segmented body and paired jointed…

Q: Porifera (sponges) Choanocytes! What do these cells do? Where are these creatures typically found?…

A: Choanocytes are sponge cells with a central flagellum, or cilium, surrounded by a collar of…

Q: The coelom of an earthworm, the muscular foot of a clam, andthe trunk of an elephant can all be…

A: There are three types of skeletons present in animal kingdom. These include; Endoskeleton which is…

Q: concepts for each about the general characteristics of invertebrates (as a whole) as to (a) body…

A: Invertebrate animals do not contain vertebral columns. In other words, an animal called an…

Q: How humans learn and remember things is still one of the major unsolved biological mysteries. Much…

A: Biology and psychology continue to investigate the complex and dynamic process of human learning and…

Q: Why is the evolution of the amniotic egg significant? Embryos are protected from predators.…

A: An amniotic egg is an egg which is terrestrially adapted egg and encased by a shell and…

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: Match the following taxa with appropriate characters Endoskeleton with ossicles V [ Choose ]…

A: Endoskeleton with ossicles- Echinodermata and ophiuroidea. Explanation-Small calcareous components…

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: In the animal kingdom today, poikilotherms outnumberhomeotherms by a great margin. Why is…

A: Homeotherms are subclass of endotherms animals that primarily produce their own heat through…

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: Match the following taxa and characters Brittle stars v [ Choose ] Asteroidea Ophiuroidea Crinoidea…

A: Hi, Thanks For Your Question.  Answer :  1. Brittle Stars - Ophiuroidea Explanation : Brittle…

Q: Give at least 10 exoskeletons found in animals, source, its description and state their embryonic…

A: Exoskeleton animals, often referred to as exoskeletal animals or arthropods, are a variety of…

Q: A. Is A a chordate? [Select] B. Is A or B more Advanced? [Select] C. What evidence is there to…

A: Understanding the developmental connections among chordates is significant for decoding the…

Q: What does your analysis suggest about the role of miRnAdiversity in the evolution of animal…

A: The miRNA refers to the microRNA present in animals, plants, and in a few viruses. It is a…

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: Which of the following groups of early-diverging animals is comprised of two layers of cells that…

A: Introduction Divergent evolution:- It refers to the process by which interbreeding species diverged…

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: MAKE CONNECTIONS Many new animal body plansemerged during and after the Cambrian explosion.…

A: Cambrian explosion took place nearly 541 million years ago in the Cambrian period. Fossil records…

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: The list of 9 phyla with two example species per phylum. 2) The list of characteristics you made…

A: A dichotomous key is a tool for identifying organisms based on their properties. It asks a series of…

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: 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…

Q: which have evolved to no longer develop completely their limbs, consistent with Heidi's declaration.…

A: Tetrapods are those vertebrates that possess four limbs and primarily live on land. These include…

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.