Anatomizing Arthropods

Sydney Merritt - Period 4 - Guzman

Caelifera & Cambarus

Both the grasshopper and crayfish are arthropods: invertebrates with jointed legs, and segmented bodies that develop as protostomes. While grasshoppers are land-dwelling species, and crayfish inhabit marine environments, the two animals share many similar characteristics, including classification (taxonomy). The two species can be classified as: Animalia, Arthropoda, while crayfish belong to the class crustacean, and grasshoppers, insecta.

Objectives

Students will be able to identify the characteristics of crustaceans and insects, all members of the arthropod phylum.

Students will be able to describe the integumentary system of invertebrates.

Students will be able to recognize the habitat, feeding relationships and adaptations of these animals.

Caelifera

Beauty of Insect Grasshopper closeup video by Shirishkumar Patil Amravati

Cambarus

Dissection

Crayfish Anatomy Part 1
Big image
Big image

** As this was an external observation lab, no internal dissection pictures are my own

Big image
Big image

The Integumentary System

This system is composed of the outer layer of a species, and in these cases, the hard invertebrate skeleton. The function of the integumentary system is to protect all vital internal organs, regulate body temperature, and fight-off disease. In both arthropod cases, the exoskeleton that surrounds the entire body acts as the integumentary system.
Big image

For more details on the systems of a Grasshopper...

For more details on the systems of a crayfish...

Did you Know...?

  • Adult grasshoppers can range between 1 and 7 cm in length.
  • There are over 200 species of crayfish in North America.
  • No crayfish exist in Africa.
  • The State of Louisiana has established the crayfish as its official crustacean.
  • A grasshopper's eardrum is on its abdomen.