Unit 5 Individual ProjectName: Victoria RockDate: September 24, 2011There are 9 animals in nine different Phyla. Be sure t...
2                               Mollusca          (1b,2b,6a,7b,11a,    class:                                             ...
3                               Annelida          (1b,2b,6a,7a,8b,     class:                                             ...
4                               Chordata         (1b,2b,6a,7b,11b,1 class: Insecta                                        ...
5                               Porifera         (1a)                  class:                                             ...
7                               Chordata         (1b,2b,6b,16b,18b, class: Aves                                           ...
8                                                                      Platyhelminthe   (1b,2b,6a,7a,8b,9b, class:        ...
6a: Animal has no                                             apparent skelton,                                           ...
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Understanding phyla dichotomous key steps and classification part 1

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Understanding phyla dichotomous key steps and classification part 1

  1. 1. Unit 5 Individual ProjectName: Victoria RockDate: September 24, 2011There are 9 animals in nine different Phyla. Be sure to look at every page. Animal Phylum Dichotomous Key Classification (steps) 1 Cnidaria (1b,2a,3a,4b) class: 1b: Symmetry is Scyphozoa radial or bilateral 2a: Radial symmetry, lacks a well defined head 3a: No spines or arms present 4b: Saucer-shaped, transparent body with thin tentacles, free floating © 20010-2011 Career Education Corporation University Group
  2. 2. 2 Mollusca (1b,2b,6a,7b,11a, class: 12b,13a) Gastropoda 1b: Symmetry is radial or bilateral 2b: Bilateral symmetry(similar right & left body halves, anterior head end & posterior tail end) 6a: Animal has no apparent skelton, or may have an exoskelton(hard outer covering) or may have a shell; invetebrate 7b: Hard outer covering, exoskeleton, or shell:not worm like 11a: No jointed appendages 12b: Soft body, obvious head 13a: May or may not have a shell; head with tentacles, small eye or eys spot © 20010-2011 Career Education Corporation University Group
  3. 3. 3 Annelida (1b,2b,6a,7a,8b, class: 9a) Secernentea 1b: Symmetry is radial or bilateral 2b: Bilateral symmetry(similar right & left body halves, anterior head end & posterior tail end) 6a: Animal has no apparent skelton, or may have an exoskelton(hard outer covering) or may have a shell; invetebrate 7a: No hard outer covering, no exoskeleton, or no shell; worm like 8b: Body is not segmented 9a: Body long and tubular © 20010-2011 Career Education Corporation University Group
  4. 4. 4 Chordata (1b,2b,6a,7b,11b,1 class: Insecta 4b,15b) 1b: Symmetry is radial or bilateral 2b: Bilateral symmetry(similar right & left body halves, anterior head end & posterior tail end) 6a: Animal has no apparent skelton, or may have an exoskelton(hard outer covering) or may have a shell; invetebrate 7b: Hard outer covering, exoskeleton, or shell:not worm like 11b: Jointed appendages 14b: One pair of antennae or none, no large claws 15b: Three pairs of legs, wings present © 20010-2011 Career Education Corporation University Group
  5. 5. 5 Porifera (1a) class: 1a: Symmetry is Demospongiae irregular(neither bilateral or radial);aquatic;bod y structute without tissues or organs.6 Echinodermata (1b,2a,3b,5a) class: 1b: Symmetry is Asteroidea radial or bilateral 2a: Radial symmetry, lacks a well defined head 3b: Spines or arms present 5a: Five arms present, body surface knobby © 20010-2011 Career Education Corporation University Group
  6. 6. 7 Chordata (1b,2b,6b,16b,18b, class: Aves 19b,20a) 1b: Symmetry is radial or bilateral 2b: Bilateral symmetry(similar right & left body halves, anterior head end & posterior tail end) 6b: Animal has internal skeleton; vertebrate 16b: Not fish like, body not flattened, appendages jointed or absen Claws or nails presents on toes; skin covered with feathers or hair 20a: Feathered, claws present © 20010-2011 Career Education Corporation University Group
  7. 7. 8 Platyhelminthe (1b,2b,6a,7a,8b,9b, class: s 10a) Turbellaria 1b: Symmetry is radial or bilateral 2b: Bilateral symmetry(similar right & left body halves, anterior head end & Image Rights: Allen G. posterior tail end) Collins and the UC Museum of Paleontology 6a: Animal has no apparent skelton, or may have an exoskelton(hard outer covering) or may have a shell; invetebrate 7a: No hard outer covering, no exoskeleton, or no shell; worm like 8b: Body is not segmented 9b: Body flattened 10a: Free living, aquatic, ribbon- like, smooth9 Nematoda (1b,2b,6a,7a,8b,9b, class: Cestoda 10b) 1b: Symmetry is radial or bilateral 2b: Bilateral symmetry(similar right & left body halves, anterior Image Rights: Courtesy of University of Minnesota head end & posterior tail end) © 20010-2011 Career Education Corporation University Group
  8. 8. 6a: Animal has no apparent skelton, or may have an exoskelton(hard outer covering) or may have a shell; invetebrate 7a: No hard outer covering, no exoskeleton, or no shell; worm like 8b: Body is not segmented 9b: Body flattened 10b: Endoparasites(live s inside host); may look segmented© 20010-2011 Career Education Corporation University Group

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