PPT-Origin and Early History of the Vertebrates

Author : luanne-stotts | Published Date : 2016-06-22

The Protochordates as Ancestors Some living chordate groups may resemble the primitive vertebrate ancestors protochordates Hemichordates Burrows in marine sediments

Presentation Embed Code

Download Presentation

Download Presentation The PPT/PDF document "Origin and Early History of the Vertebra..." is the property of its rightful owner. Permission is granted to download and print the materials on this website for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.

Origin and Early History of the Vertebrates: Transcript

The Protochordates as Ancestors Some living chordate groups may resemble the primitive vertebrate ancestors protochordates Hemichordates Burrows in marine sediments acorn worms pharyngeal gill slits . PHYLUM: CHORDATA. SUBPHYLUM: VERTEBRATA. VERTEBRATES. ANIMALS WITH:. Dorsal nerve cord. Hollow backbone. Ventral heart . 5 major classes . Classified by:. Skin covering. Heart chambers. Reproduction. Embryological Evidence for Evolution. Development Videos & Articles. Main idea behind our activity was to determine how the similarities between the embryos of vertebrates provides evidence of evolution . Learning Objectives : To explain how animals are classified into groups.. Key Words: . How do we identify living from non living?. There are seven essential life processes.. . To remember these processes meet . decidetheyoverheadprojector Classifying Vertebrates Classroom Activity [Purpose: The facilitator Invertebrates. I can classify animals by determining if. they are vertebrates or invertebrates.. Essential Questions. • . Why do we classify animals. ?. • How do we classify animals?. Think-Pair-Share. THE ORIGIN AND EVOLUTION OF MICROBIAL LIFE. HOW DID LIFE ORIGINATE?. SPONTANEOUS GENERATION. LIFE ARISING FROM NON-LIVING MATTER. LONG BELIEVED AS THE ACCEPTED EXPLANATION OF ORIGINATION OF LIFE. EXPERIMENTS EVENTUALLY SHOWED IT TO BE IMPOSSIBLE. Page: 500 - 519. Phylum Chordata. Classification. Kingdom: Animalia. Subkingdom: Vertebrates (has a backbone). Phylum: Chordata (has a spinal cord). Three subphylums are under Phylum Chordata:. Subphylum Cephalochordata. Cnidaria. Ctenophora. Rotifera. Nematoda. Nemertea. Mollusca. Annelida. Arthropoda. Bryozoa. Phoronida. Brachiopoda. Echinodermata. Chordata. No true tissues. radial symmetry. diploblastic. true tissues. - Reptiles and Mammals -. Amniote. Egg. Amnionic sac – protects embryo. Allantois – disposal sac for embryonic waste, works with chorion in gas exchange. Yolk sac – storage and transfer of nutrients to developing embryo. The . Protochordates. as Ancestors. Some living chordate groups may resemble the primitive vertebrate ancestors (. protochordates. ). Hemichordates. Burrows in marine sediments (acorn worms). (+) pharyngeal gill slits; . Objective. :. . To compare the anatomy of a frog with that of the human body. Bell work: . Complete a Venn Diagram that details the similarities and differences between frogs and . Homo sapiens. :. These evidences are based on the . comparative study of the embryos. . of various animals.. Von Baer. noticed . remarkable similarities. among . vertebrate embryos. , however, their adults were quite different.. Excretory and Reproductive systems are closely associated morphologically, both in terms of mode of development and use of common . ducts.. This . association is primarily due to a common derivation . Derived. = appearing later in the fossil record as a new evolutionary innovation, descendant character state. Clade. = all organisms within a single evolutionary lineage; stemming from a common ancestor (can also be called a .

Download Document

Here is the link to download the presentation.
"Origin and Early History of the Vertebrates"The content belongs to its owner. You may download and print it for personal use, without modification, and keep all copyright notices. By downloading, you agree to these terms.