Difference between revisions of "Category:Arachnida"

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[[Image:Tick pic.jpg|thumb|right|150px|Deer tick - Wikimedia Commons]]
 
[[Image:Tick pic.jpg|thumb|right|150px|Deer tick - Wikimedia Commons]]
  
The arachnids includes well known veterinary species such as ticks and mites. It also includes scorpions and spiders. Most of the structure and function of the arachnids is similar to the [[Insecta|insecta]].
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The arachnids includes well known veterinary species such as ticks and mites (order Acarina). It also includes scorpions and spiders. Most of the structure and function of the arachnids is similar to the [[Insecta|insecta]].
 
==Structure and Function==
 
==Structure and Function==
  

Revision as of 19:56, 18 May 2010


Classification

Arthropod Classification - copyright nabrown RVC
Deer tick - Wikimedia Commons

The arachnids includes well known veterinary species such as ticks and mites (order Acarina). It also includes scorpions and spiders. Most of the structure and function of the arachnids is similar to the insecta.

Structure and Function

  • Only two body divisions
    • Cephalo-thorax
    • Abdomen
  • Three pairs of legs in the larval stages or four pairs of legs during the nymphal and adult stages
  • No wings
  • No antennae
  • No compound eyes
  • Small size
    • E.g. Ticks are under 1cm in length
    • E.g. Mites are under 1mm in length

Life cycles

  • The larva (also called seed tick) develops from the egg
  • The nymphal stage follows the larval stage
  • The nymph then develops into an adult (i.e. sexually mature)

<ncl style=compact maxdepth=3 headings=bullet headstart=2

     showcats=1 showarts=1>Category:Arachnida</ncl>

Subcategories

This category has the following 2 subcategories, out of 2 total.

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Pages in category "Arachnida"

The following 3 pages are in this category, out of 3 total.