How many of the existing jewelry materials are formed in the body of shellfish?
Correct answer: 1

Alas Ken
If theres pearl and mother of pearl, then there's more than 1.

Jonesy
Wally McGhee 🐥, there is a report button that anyone can use.

Tee
Mother of pearl and abalone SHOULD be in this question. Leaving them out is unacceptable. Toss this question!

Tee
Mother of pearl and abalone SHOULD be in this question. Leaving them out is unacceptable. Toss this question!

Wally McGhee 🐥
Agreed. There is abalone and Mother of Pearl. The question is worded badly and should be removed. I wish there was better vetting here.