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Arthropods
Arthropods
9
Science
7th Grade
04/25/2008

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Term
Arthropods
Definition
An invertabrate that has an external skeleton, a segmented body, and jointed attachments called appendages
Term

Exoskeloton

Definition
The outer skeloton, protects the animal, and helps prevent evaporation of water
Term
Chitin
Definition
Made of long molecules that are built from many smaller building blocks, like links in a chain
Term
Molting
Definition
Teh process of shedding an out grown exoskeleton
Term
Antenna
Definition
An appendage on the head that contain sense organs
Term
Crustaceans
Definition
An arthropod that has two or three body sections and usually has 3 pairs o fappedages for chewing
Term
Metamorphosis
Definition
A process in which an animal's body undergoes dramatic changes of the body during its life time
Term

Arachnid

Definition
Only has 2 sections and one of them is combined to the head and chest
Term
Abdomen
Definition

The section, which contains the reproductive orgabs and part of its digestive tract 

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