Chapter 20: Crustaceans
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14 Terms
What are Crustaceans also known as
“Insects of the sea”
Roots of Crustacea
Crusta = shell
How many described species of Crustaceans are there
67,000
Insects control the ____, Crustaceans control the ____
Land, water
How many pairs of antenna do Crustaceans have
Two pairs of antenna
How many pairs of mandibles do Crustaceans have
One pair of mandibles
How many pairs of maxillae do Crustaceans have
Two pairs of maxillae
How many pairs of appendages on each segment in Crustaceans
One pair on each segment with legs
What leg type do Crustaceans have
Mostly biramous
What type of respiratory organ do Crustaceans possess
Gills
A large number of the segments in Crustaceans are…
Ancestral
Structure where thoracic segments are fused with head
Cephalothorax (def)
Some Crustaceans possess a fused…
Cephalothorax
What is the hard covering that Crustaceans possess
Carapace