All arthropods have an exoskeleton composed of ?

3 ⤊

All arthropods have an exoskeleton composed of ?

chitin , spiracles , chelicerae?

2007-02-15 12:50:42 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Biology

3 answers

chitin
http://wywy.essortment.com/whatischitin_rkkh.htm
http://encarta.msn.com/encyclopedia_761557399/Arthropod.html

2007-02-15 13:03:50 · answer #1 · answered by Debi 7 · 1⤊ 0⤋

Chitin

2007-02-15 20:54:13 · answer #2 · answered by trewornan 2 · 2⤊ 0⤋

OK ...

One of these words refers to openings for breathing.
One of these words refers the material that makes the exoskeleton.
One of these words refers to some appendages.

They are not even close to the same thing . .. they just have something to do with arthropods.

2007-02-15 20:55:14 · answer #3 · answered by ecolink 7 · 0⤊ 0⤋