Answer:
Vegetation- riparian vegetation directly affects dissolved oxygen by releasing oxygen into the water during photosynthesis. It indirectly affects dissolved oxygen concentrations because vegetation shading a stream may decrease water temperatures, and as temperature decreases dissolved, oxygen increases.
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The characteristic of a urodeles is a Salamander
It has feet attached to its head. Cephalopod is a Greek word, where cephalo means head, and pod means foot. So a possible translation would be head-foot, which means that the feet are attached to the head. An octopus, or an octopod, means that it has 8 legs, because octo means 8, and pod means foot.