What Makes the Shell of a Lobster So Hard

question 39

Multiple Choice

What makes the shell of a lobster so hard?

• A)It contains chitin which is hard and inflexible.
• B)The procuticle is impregnated with calcium salts.
• C)It is due solely to a tanning process.
• D)The procuticle and epicuticle are laminated.
• E)The shell protein contains more lipid.

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