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Paper Topic:

Unit 5 IP Taxonomy; Plant and Animal Structure

Unit 5 Individual Project

Name

Date There are 9 Organisms in Nine Different Phyla

Image Rights : Allen G

Image Rights : Courtesy of University of Minnesota Nematoda 1b , 2b , 6a 7a , 8b , 9a 1 . Which phyla lack organs ? What type of symmetry do they have

The porifera lacks an enclosed body cavity , tissues , organs and neural network . They have irregular symmetry . The cnidaria lacks an enclosed body cavity . They have radial symmetry . The platyhelminthes lack enclosed body cavity , and organs specialized for gas exchange and circulation . They have bilateral

symmetry . The nematode lacks circulatory system . They have bilateral symmetry . The some mollusca lack exoskeleton like the class cephalopoda . Mollusks lack a closed circulatory system except for class cephalopoda . Some do not have their gills or the gills are secondarily lost . The mollusks have bilateral symmetry (Scott 2004

2 . List all of the phyla that show cephalization

Most of the phyla that possess bilateral symmetry also posses cephalization

These include

Phylum platyhelminthes

Phylum arthropoda

Phylum mollusca

Phylum vertebrae or chordata

3 . Do all organisms on the table have 3 germ layers (endoderm , ectoderm and mesoderm ? If not , which Phyla have fewer than three germ layers

No , the phylum porifera and cnidaria have germ layers that are fewer than three

4 . One phylum has more species than all the others . State the name of this phylum and provide several different examples of species found in this phylum

Phylum arthropoda has the most number of species among others . Species that belong to these phylum includes dragonfly , damselfly , grasshopper katydid , cricket , mantis , cockroach , walkingstick , termite , true bug leafhopper , cicada , aphid , scale insect , beetle , butterfly , moth , fly mosquito , flea , bee , ant , wasp and many more (Carter 1997

5 . According to chapter 24 , fish do not all have the same skeletal structure ? Describe the differences among fish from the most primitive to more advanced types

Fishes have different vertebral column . The vertebral column of fishes ranges from the most primitive to the most complex . Different vertebral columns include the most primitive notochord , the cartilaginous vertebral column of the chondrichthyes and the of osteichthyes . Fishes also have different skulls . There are three types of fish according to the skull : the jawless fish , cartilaginous fish and bony fish fish can also be classified according to the appendicular skeleton . The two types of fish according to appendicular skeleton are chondrichthyes and osteichthyes (MSU

6 . Describe the three types of mammals based on how their young develop

The three type of mammals based on how their young develop are monotremes , marsupials and placental mammals

Brain Bridge Island School District (2007 . Retrieved September 18 , 2008 from

Mike , Jaclynn , Chrystal Walsh (2006 . Mammals . Salisbury University Retrieved September 18 , 2008 from

MSU . The Skeletal System . Montana State University . Retrieved September 18 , 2008 from

Scott , N . Study Guides . 11 August 2004 . Retrieved September 18 , 2008 from

Stein Carter , J (1997 . Phylum Arthropoda . 03 Nov 2004 . Retrieved September 17 , 2008 from

University of Evansville (1994 . Kingdom Animalia - Invertebrates page 3 . Retrieved September 18 , 2008 from (c...

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