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Arthropods

Notes about arthropods in marine biology.

QuestionAnswer
What phylum do 75% of all animals on earth belong to? Arthropods
What body structures do arthropods have? Jointed legs and appendages
What are arthropod exoskeletons made of? Chitin
What are the 3 segments of an arthropod? The head, thorax, and abdomen
What must arthropods go through to grow involving shedding their exoskeleton? Molting
Where are crawfish found? Freshwater
What are some examples of dominant marine arthropods? Copepods, barnacles, isopods, amphipods, shrimps, lobsters, and crabs
How many antennae do marine arthropods have? 2
In marine arthropods, which body parts are fused and what is it called? The head and thorax are fused and is called a cephalothorax
What can the appendages on marine arthropods be used for? Feeding, swimming (sometimes), and reproductive purposes
What are gonoducts? Reproductive systems in the back of American lobsters
When is the mating season for horseshoe crabs? Where is it? During the spring on beaches.
What do sea spiders eat? Soft invertebrates like sea anemones and hydrozoa
What do sea spiders use to eat? Proboscis
Where are sea spiders most common? In cold waters, but can be worldwide
Created by: CommsMKSoz
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