Amazing Arthropods
Venu Kantamani 04/07/14 Vu - PAP Bio
Objectives
In this lab, students will examine 2 preserved arthropods - a grasshopper and a crawfish. They will look for similarities in these 2 animals that may be phylum traits. They will also look for differences in these 2 animals that may be class traits.
Grasshoppers Background Information
Grasshoppers belong to the kingdom Animalia under the phylum Arthropoda, class Insecta, and order Orthoptera. The grasshopper's diet primarily consists of grasses, leaves, and cereal crops, but are also considered omnivorous. Its main predators are birds, lizards, spiders, and rodents. Ecological adaptations for grasshoppers include having jointed appendages, having 3 pairs of legs, having a chitinous exoskeleton, molting, big hind legs for jumping, and camouflage due to exoskeleton color.
Grasshopper Evolutionary Relationships
Grasshopper Internal Anatomy
Grasshopper External Anatomy
Grasshopper Respiratory System
Grasshopper Interesting Facts
Grasshoppers change their chirping based on the temperature.
Young grasshoppers can eat twice their own body weight in one day.
Crayfish Background Information
Crayfish Evolutionary Relationships
Crayfish Internal Anatomy
Crayfish External Anatomy
Crayfish Integumentary System
Crayfish Interesting Facts
Crayfish live on every continent except Africa and Antarctica.
There are 200 species of crayfish in North America.
Crayfish have inner gills that allow them to live out of water.
Sources
http://lanwebs.lander.edu/faculty/rsfox/invertebrates/homarus.html
http://www.biologyjunction.com/crayfish_appendage_table.htm
http://crescentok.com/staff/jaskew/isr/biology/biolab46b.htm
http://mackers.com/crayfish/info.htm
http://imgarcade.com/1/grasshopper-diagram/
http://www.tutorvista.com/content/biology/biology-ii/respiration/grasshopper-gaseous-exchange.php