Use the following phylogenetic tree to help determine if the provided examples below are homologous structures or analogous structures. Figure 27.10 ANCESTRAL PROTIST Metazoa 770 million years ago ©2014 Pearson Education, Inc Eumetazoa 680 million. years ago 670 million years ago Bilateria Deuterostomia Lophotrochozoa Ecdysozoa The worm shape of a hemicordata and the worm shape of a nematoda Porifera Ctenophora Cnidaria The scales of a fish (chordata) and the scales of a scaleworm (annelida) The shell of the brachiopoda and the shell of the mollusca The shell of a mollusca and the hard outer surface of the arthropods Hemichordata Echinodermata The holes in human skin (pores) and the hole in the body of a porifera Chordata Platyhelminthes EXAMPLE The round shape of an Echinodermata and the round shape of a ctenophora Rotifera Ectoprocta Brachiopoda Mollusca Annelida Nematoda Arthropoda The trochophore larval stage of a Mollusca and the trochophore larval stage of an annelida. Homologous or Analogous

Q: Which of these models correctly identifies the most recent common ancestor diplobla Cnidaria…

A: Diploblastic animals such as jellyfish, sea anemones, and corals do not have a mesodermal germ…

Q: You are working on a summer internship with a famous marine scientist. Your job is to use your…

A: Coelome Coelome is the body cavity present between two germ layes.

Q: Which of the following is a synapomorphy of the Anthozoa? Exoskeletons of calcium carbonate O Corals…

A: Cnidaria is a diverse collection of creatures that live primarily in the sea. Because they rely on…

Q: Tахоn Domain Kingdom Phylum Class Order Family Genus Species Eukarya (matti -ealle lar Animalia…

A: * Taxonomy is the science of naming and describing and classifying organisms  based on observable…

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: List examples of each of the 15 phyla

A: Note: We’ll answer the first question since the exact one wasn’t specified. Please submit a new…

Q: Based on the evidence in the diagram, which statement is true about fungi?

A: Fungi are eukaryotic,  heterotrophic organisms which includes the yeast, molds , mushroom etc.

Q: Place the following life stages in order from youngest (1) to oldest (5).     glochidium in host…

A: Life stages These are defined as the different ages or stages one goes through in a normal lifetime.…

Q: Out of all of these, which contains hox genes? Choanoflagellata Porifera Cnidaria…

A: Homeotic genes are a set of nucleotide sequences (genes), which govern the development of anatomical…

Q: Give a brief background on Cnidaria, Porifera, protozoans. Use your own words do not plagerize.

A: Introduction:- Cnidaria also called as coelenterate , any member of the phylum cnidaria, a group…

Q: Which of the following pairings is correct? Select all that apply. Check All That Apply…

A: Protostomes and deuterostomes are two types of bilaterally symmetrical animals with distinct…

Q: Molecular clock data place the evolution of diatoms around the time period following the Permian…

A: These are single celled algae . These live in houses made of glass.  They are the only organism with…

Q: The phylogenetic tree in Exercise 1 above shows an outdated relationship between Brachiopoda,…

A: A phylogenetic tree is a diagram that represents evolutionary relationships among organisms.…

Q: Examine Figure 3. Based on the number of taxa, which 2 vertebrate clades suffered the most…

A: An extinction event is rapid decrease in the biodiversity on Earth. Extinction is death of species…

Q: Select terms from the Answer Bank to label the diagram according to hypothesis 1 on the origin of…

A: The diagram shown above indicates about the origin of eukaryotic cells. It is first proposed by Lyn…

Q: For each grouping that follows, briefly define, indicate where they are on the tree and note if they…

A: A monophyletic group is also called as clade.  It involves the ancestral taxon that has its…

Q: What synapomorphies suggest that relatives of Metazoans? Choose all th Both store energy as starch.…

A: The most striking resemblance between fungus and mammals is their trophic level, or position in the…

Q: 1. Consider the phylogenetic tree shown below. Nodes are labeled with numbers (1-13) above each…

A: A substantial portrayal of chosen species' developmental links. It may be a hypothesis that will be…

Q: Rank the six organisms by increasing size, from smallest to largest. 1. Diatoms, or Mixed Diatoms 2.…

A: Size of each organisms Diatoms     : 20-200 microns Ceratium    : 5-2000µm Radiolarians : 30…

Q: DISTINGUISHING Match the distinguishing features (on left) to their appropriate taxon (phylum or…

A: Answer:- Phylum Porifera = Spicules The sideroblasts in the Porifera secretes spicules whereas the…

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

A: Classification is a process by which anything is grouped into convenient categories based on some…

Q: Imagine you come across a colonial organism. Determine whether it is a class Hydrozoan or a…

A: Hydrozoa and Anthozoa are the classes of Coelentertes. These are multicellular organisms showing…

Q: Select 2 types of mesozoans and describe the following: class characteristics developments

A: Mesozoa is worm-like parasites that live on marine invertebrates. In the majority of these tiny,…

Q: Collembolans Question 1 options:   are arachnids   are members of the Paleoptera   are…

A: Answer :- Collembolans are arachnids.   Explanation :-  Collembolans are the crude Apterygote…

Q: Alex Pizzo Protists Cladogram Traits: 1. Incorporated red algae via 2° endosymbiosis 2. Incorporated…

A: Chromalveolates : DinoflagellatesArchaeplastida : Red Algae,  Multicellular Green Algae, Spirogyra,…

Q: Imagine you come across a small worm. How can you determine whether it is a class Hirudinida or a…

A: Introduction :- Organisms are classified amongst various classes, orders , family according to their…

Q: Q10b. Which of the land snail species is not longer in existence? Q10c. Make a box around the…

A: A phylogenetic tree helps visualize the relationship between species. It shows how the organisms are…

Q: Carotenoids in algae have evolved through primary and secondary endosymbiosis. provide a…

A: The evolutionary roots of six key carotenoids- viola anything, zeaxanthin, fucoxanthin, carotene,…

Q: The term Ecdysozoa refers to....? Group of answer choices having a backbone having jointed legs…

A: The biggest phylum in the animal kingdom, arthropods are a varied group of invertebrate creatures.…

Q: Give a description of each species, including its domain and kingdom. kainops invius bacillus…

A: Kainops is a genus of trilobites from the family Phacopidae, order Phacopida. It can be…

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.