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Characteristic feature of human cornea:

1. Secreted by conjunctiva and glandular
2. It is lacrimal gland which secretes tears
3. Blood circulation is absent in cornea
4. In old age it becomes harden and white layer deposits on it which causes cataract

Correct answer: Blood circulation is absent in cornea

Solution

The cornea is normally transparent, and the absence of blood vessels helps maintain that clarity. Instead of direct blood circulation, it receives oxygen and nutrients from tears and the aqueous humor.

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