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12345 [234]
3 years ago
9

1. a polysaccharide-based substance that forms the exoskeleton of arthropods.

Biology
1 answer:
AleksAgata [21]3 years ago
7 0
#1 is chitin. #2 is Embryo. #3 is Gestration Period. #4 is Gonad. #5 is Hydroskeleten. #6 is Larva.
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