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d1i1m1o1n [39]
3 years ago
6

__________ is the leading cause of preventable blindness in children.

Biology
1 answer:
adell [148]3 years ago
4 0
Vitamin A deficiency is the leading cause of preventable blindness in children.
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They function by allowing the exchange of ions, second messengers, and small metabolites between adjacent cells and are formed by two unrelated protein families, the pannexins and connexins.The protein channels that make up gap junctions consist of two connexons. One connexon resides in the membrane of one cell.

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