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Zane Wiles (left) and Tyler Apps work to gather organisms during a recent science field trip. The preponderance of delicate organisms can mean water has stayed healthy a long time. Payson High School students ecology and biology students packed onto a school bus Thursday, traveling to different points along the Verde River to measure pH levels of water, velocity and depth, and to look for organisms.

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Science students study stream health

Students in Beverly Adams’ ecology class at Payson High School know that a fish’s cheeks will balloon with too much dissolved oxygen in the water.


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