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There are 7 subcategories in this category:

Arthropods(69 questions)
Echinoderms(1 question)
[×] Extinct animals(9 questions)
Molluscs(15 questions)
[×] Sexing(68 questions)
Vertebrates(89 questions)

There are currently 1340 questions in this category.

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This category has the following 7 subcategories, out of 7 total.

Answered questions

Here are 126 answered questions.

Unanswered questions

Here are 67 unanswered questions.