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

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

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Find an animal on the phylogenetic tree and classify it as either ecdysozoa or lophotrochozoan? 

**Phylogeny of Living Animals** **Domain:** Eukarya **Supergroup:** Unikonta **Kingdom:** Animalia **Ancestral Protist:** Choanoflagellates - 700 million - 770 million years ago **Major Evolutionary Milestones:** - **680 million years ago:** Emergence of Eumetazoa (animals with true tissues). - **670 million years ago:** Emergence of Bilateria (animals with bilateral symmetry). **Key Developments:** - By 500 million years ago, most animal phyla present today were established. - Zoologists recognize about 3 dozen animal phyla. - Modern phylogenies integrate morphological, molecular, and fossil data. **Diagram Explanation:** The diagram illustrates the phylogeny, or evolutionary relationships, of living animals. It highlights the timeline and key clades: 1. **Basal Clade:** - **Porifera:** Sponges - **Ctenophora:** Comb jellies - **Cnidaria:** Includes hydra, coral, and jellyfish 2. **Bilateria:** Classified into two main clades based on body symmetry and the presence of three germ layers. - **Acoela:** Marine flatworms with simple organization - **Deuterostomia:** - **Hemichordata:** Acorn worms - **Echinodermata:** Starfish, sea urchins - **Chordata:** Vertebrates and related animals - **Lophotrochozoa:** - **Platyhelminthes:** Flatworms - **Rotifera** - **Ectoprocta** - **Brachiopoda** - **Mollusca:** Snails, clams - **Annelida:** Segmented worms - **Ecdysozoa:** - **Nematoda:** Roundworms - **Arthropoda:** Insects, spiders, crustaceans **Body Plan and Characteristics:** - **Diploblastic:** Having two germ layers (e.g., Cnidaria). - **Triploblastic:** Having three germ layers (e.g., Bilateria). - **Acoelomate:** Lacking a body cavity (e.g., Platyhelminthes). - **Pseudoco
Transcribed Image Text:**Phylogeny of Living Animals** **Domain:** Eukarya **Supergroup:** Unikonta **Kingdom:** Animalia **Ancestral Protist:** Choanoflagellates - 700 million - 770 million years ago **Major Evolutionary Milestones:** - **680 million years ago:** Emergence of Eumetazoa (animals with true tissues). - **670 million years ago:** Emergence of Bilateria (animals with bilateral symmetry). **Key Developments:** - By 500 million years ago, most animal phyla present today were established. - Zoologists recognize about 3 dozen animal phyla. - Modern phylogenies integrate morphological, molecular, and fossil data. **Diagram Explanation:** The diagram illustrates the phylogeny, or evolutionary relationships, of living animals. It highlights the timeline and key clades: 1. **Basal Clade:** - **Porifera:** Sponges - **Ctenophora:** Comb jellies - **Cnidaria:** Includes hydra, coral, and jellyfish 2. **Bilateria:** Classified into two main clades based on body symmetry and the presence of three germ layers. - **Acoela:** Marine flatworms with simple organization - **Deuterostomia:** - **Hemichordata:** Acorn worms - **Echinodermata:** Starfish, sea urchins - **Chordata:** Vertebrates and related animals - **Lophotrochozoa:** - **Platyhelminthes:** Flatworms - **Rotifera** - **Ectoprocta** - **Brachiopoda** - **Mollusca:** Snails, clams - **Annelida:** Segmented worms - **Ecdysozoa:** - **Nematoda:** Roundworms - **Arthropoda:** Insects, spiders, crustaceans **Body Plan and Characteristics:** - **Diploblastic:** Having two germ layers (e.g., Cnidaria). - **Triploblastic:** Having three germ layers (e.g., Bilateria). - **Acoelomate:** Lacking a body cavity (e.g., Platyhelminthes). - **Pseudoco
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