xml:lang="en"> Exoskeletons

Exoskeletons

Crossword

Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.
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Across:

1. The hardened layer of cuticle consisting of chitin-protein microfibers
4. Extremely thin outer layer of cuticle
6. Cuticle + Epidermis
8. Flexible inner layer of cuticle
9. An insect's exoskeleton performs the same functions as our endoskeleton and our ______ .
11. Layer of cells below cuticle
12. The epicuticle is made of lipids and _________ .

Down:

2. Major component of exoskeletons
3. Type of skeletal structure arthropods have
4. Humans have this type of skeletal structure
5. Exoskeletons provide a place for muscle _________.
7. A disadvantage of exoskeletons are that they cannot _____.
10. The _____ membrane separates an insect's blood from its epidermis