Arthropod Investigation
Aneil Marathi PRE-AP BIOLOGY MARCH 14, 2014- GUZMAN
Lab Objectives
Background Information
Grasshoppers have evolved and developed many different adaptations. These include specialized hind limbs for jumping, colorless wings, and a tough exoskeleton for protection.
Grasshoppers eat a variety of plants such as grasses and shrubs. They are predated on by birds, lizards, other insects, and rodents.
Grasshoppers, believe it or not, have a positive effect towards humans! They fertilize plants and eat waste. However they have been known to devastate crop fields...
Crayfish can be found in a variety of freshwater habitats. Part of superfamily Astacoidea, crayfish reside in lakes and other water features in North America. They provide food for many and have became a Southern staple.
Crayfish have adapted many different traits that have allowed them to become so ecologically successful. Some of these include strong, large claws called pincers developed to grab things and kill prey, slitted eyes, and short legs for walking on the bottom of lakes and marshes.
Crayfish prey on mollusks, worms, tadpoles, and small vegetation like algae. They are eaten by fish, turtles, herons, and storks.
Humans use crayfish both for recreation and for fine Southern dining as well as around the world.
Integumentary System- Crayfish/ External Anatomy
Integumentary System- Grasshopper/ External Anatomy
Arthropod Cladogram
Interesting Facts!!
The largest crayfish ever caught was 14 lbs!!
Crayfish are part of the subphylum Crustacea.
Grasshoppers are not born with wings, and must develop them as they grow.
Some grasshoppers have a special defensive mechanism in which they spray brown liquid at enemies!!
Grasshoppers are part of the subphylum Hexapoda.