CAN FISH SURVIVE ONLY IN WATER WITH DISSOLVED OXYGEN?

Oxygen dissolves into water from two sources: the atmosphere and from plants in the water. kills fish from oxygen depletions can range from “partial” to “total”. In a partial kill the dissolved oxygen level gets low enough to suffocate sensitive species and large fish, but many small fish and hardy species survive.

Explanation:

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it would be c. xylem.