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Which superphylum does Phylum Arthropoda belong to? Why?
Superphylum Ecdysozoa; because these animals have exoskeletons.
What is ecdysis?
The process of shedding or molting an exoskeleton
What is their exoskeleton made of?
Chitin
Describe the body plan of arthropods.
Bilaterally symmetrical; segmeted bodies; well-developed eyes; highly adapted; jointed appendages
Why are arthropods so wildly successful?
They have jointed appendages
What are their joints made of?
A thinner cuticle
What kind of environment do arthropods live in?
Marine, freshwater, and terrestrial
What is special about terrestrial arthropods?
They are the most abundant in variety and numbers
How many germ layers do arthropods have? What is special about their coelom?
How do arthropods eat? Describe their digestive mechanism.
Some have mandibles, some have syringes. All have a complete, differentiated digestive tract.
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