Transcript Arthropoda - 2p405funxueyaosciencee-portfolio

Basic Info
0 Arthropod is the fifth rank under the taxonomic ranks
of biological classification
0 Arthropods are the most successful group of animals
on the planet
0 There are arthropods in the land, sea and air
0 Accounts for 1,170,000 of the species known to man,
or 80% of the total species
Characteristics
0 Symmetrical bilateral bodies
• Segmented bodies
0 Hardened exoskeleton
• Contains chitin secreted from the epidermis
0 Complex muscles
• Capable of quick reactions
0 Complete digestive canal is present
0 Open circulatory system
• Blood flows freely within the body
Charcteristics
0 Respiration through gills, air ducts, lungs or body
surface respiration
0 Joint appendages
• One pair of appendages per segment or less
0 Separate sexes
• Mostly internal fertilization
Subphylums
0 Hexapoda
0 Trilobite
0 Chelicerata
0 Myriapoda
0 Crustacean
Hexapoda
0 Includes insects as well as three smaller groups of
wingless athropods:
- Collembola
- Protura
- Diplura
0 Body
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Distinct head
Thorax containing three pairs of legs
One or two pairs of wings
Limbless, segmented body
Hexapoda
0 Examples of Hexapodas:
 Houseflies
 Ants
 Bees
Trilobite
0 Extinct marine arthropods
0 Exoskeleton made up of chitin
0 Three body sections:
• Head
• Body
• Tail
Trilobite
0 Examples:
Chelicerata
0 Once marine animals a long time ago
0 Segmented bodies with jointed limbs
0 Covered in cuticle made of chitin
0 Has head, body and abdomen
0 The venom of spiders and scorpions and the blood of
horseshoe crabs are being used for tests
Chelicerata
0 Examples:
• Horseshoe crab
• Scorpion
• Mite
Myriapoda
0 Known to have many legs
• Ranging from 750-less than 10 legs
0 Body
• Body segments are fused into pairs
0 Produce noxious secretions
• Causes temporary blistering and discoloration of skin
Myriapoda
0 Examples:
• Centipede
• Millipede
• Arthropleura
Crustacean
0 Large group of arthropods
0 Sizes ranging from 0.1mm to 3.8m
0 Mainly free-living aquatic animals
0 Body
• Head
• Body
• Thorax
0 Hard exoskeleton
Crustacean
0 Examples:
• Lobster
• Crab
• Prawn
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http://library.thinkquest.org/26153/marine/arthro.htm
http://www.ucmp.berkeley.edu/arthropoda/arthropoda.html
http://en.wikipedia.org/wiki/Arthropoda
http://en.wikipedia.org/wiki/Hexapoda
http://en.wikipedia.org/wiki/Trilobitomorpha
http://en.wikipedia.org/wiki/Chelicerata
http://en.wikipedia.org/wiki/Myriapoda
http://en.wikipedia.org/wiki/Crustacean
http://www.oddfacts.net/?p=174
http://townipproject09.wikispaces.com/Disappearance+of+Honey+Bees
http://colinjong.com/2009/11/25/drunken-housefly/
http://www.biolib.cz/en/taxonimage/id44084/?taxonid=16774&type=1
http://www.bio.miami.edu/dana/106/106F06_14.html
http://www.virtualmuseum.ca/PM.cgi?LM=Gallery&scope=GalleryS&LANG=English&AP=fullImage2&k=AB
SNCTF.2000.2
http://visualparadox.com/photos/scorpion.htm
http://animals.howstuffworks.com/arachnids/mite-and-tick-info.htm
http://cccmkc.edu.hk/~kei-kph/Fossil/Horseshoe%20crab_ventral%20veiw.htm
http://prehistoricanimal.blogspot.com/2009/06/arthropleura.html
http://www.flickr.com/photos/aztlek/3430930931/
http://animal-world.com/encyclo/reptiles/centipedes/VietnameseCentipede.php
http://lobstertube.info/
http://theirishmother.blogspot.com/2010/09/crab-stuffed-chicken.html
http://news.discovery.com/animals/listen-to-a-prawn-eat.html
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