All About Arthropods
Abbey Boggs 4/10/2014 Mitcham-PAP Bio-6
Objectives
The objectives of this lab are:
- To examine a grasshopper and a crayfish
- To find similarities (phylum traits) between a grasshopper and a crayfish
- To find differences (class traits) between a grasshopper and a crayfish
Arthropoda
Integumentary System
An arthropod's integumentary system typically consists of:
- Three sections (a head, a thorax, and an abdomen), which aid in movement
- The exoskeleton, including the cuticle, which is protective and is composed of chitin
All about an arthropod's integumentary system
The integumentary system of an arthropod functions to prevent water loss from the arthropod's body, to protect the arthropod, and to aid in the movement of the arthropod. The integumentary system also provides a structure and framework for the arthropod's body. Arthropods are segmented, which helps ease movement. An arthropod's integumentary system is closely related to the muscular system, because the integumentary and muscular systems work together to make movement possible with an arthropod.
Cladogram
Human Impact
Internal Anatomy
Adaptations
Arthropods have the following adaptations:
- A hard exoskeleton that prevents arthropods from becoming overly dry
- An open circulatory system, which allows nutrients to travel directly to where they are needed
Test Your Arthropod Knowledge!
Works Cited
http://www.newworldencyclopedia.org/entry/Grasshopper
https://insects.tamu.edu/fieldguide/aimg11.html
http://forums.gardenweb.com/forums/load/ipm/msg0612143311063.html
http://www.crayfishfacts.net/what_do_crawfish_eat/what_do_crawfish_eat.html
http://www.ask.com/question/what-eats-crayfish
http://www.brighthub.com/environment/science-environmental/articles/85197.aspx
http://rowdy.msudenver.edu/~churchcy/BIO3200/images/cladogram_arthropoda.htm
http://www.psccompanies.com/image-files/grubbing4.jpg
http://bio1151.nicerweb.com/Locked/media/ch33/33_35GrasshopperAnatomy.jpg
http://www.britannica.com/EBchecked/topic/289723/integument/33042/Arthropods
http://science.jrank.org/pages/523/Arthropods.html
http://studyjams.scholastic.com/studyjams/jams/science/animals/arthropods.htm
http://evolution.berkeley.edu/evolibrary/article//arthropods_intro_05
http://www.pbs.org/kcet/shapeoflife/animals/arthropods.html
http://www.biologycorner.com/worksheets/evolution_arthropod_key.html