(Lobsters,Crabs, and Shrimp)

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Presentation transcript:

(Lobsters,Crabs, and Shrimp) Crustaceans (Lobsters,Crabs, and Shrimp)

Just the Facts…. Crustaceans belong to the Phylum Arthropoda (jointed feet). All Arthropods have jointed appendages. All Arthropods have an exoskeleton.

The Exoskeleton Is made of a tough fibrous material called chitin. This gives the skeleton strength and flexibility. There are several pairs (5 or more) of jointed appendages (movable arms and legs).

Molting Molting is when the exoskeleton is shed as the organism outgrows it.

Other Characteristics Bilateral symmetry Two main body segments- Cephalothorax Abdomen They filter feed, scavenge, or are predatory Use appendages for food getting and movement Found throughout the oceans of the world Are an important food source for other marine organisms They reproduce sexually, fertilize externally Have gills to breathe

The Mantis Shrimp

Tough Guy!

The Mantis Shrimp vs. The Blue Ringed Octopus

Crustacean Wars