How have humans changed the global nitrogen cycle? A. They have greatly decreased the amount of fixed nitrogen.
B. They have raised the speed at which nitrogen travels through the
cycle.
C. They have lowered the speed at which nitrogen travels through the
cycle.
D. They have greatly increased the amount of fixed nitrogen.

Two students are working together on an experiment that measures the effect of different liquid fertilizers on the thickness of plants’ stems. which is most likely to result in the greatest amount of error in their scientific experiment? a.one student measures the plant stem widths by using calipers. the other student measures the widths of the same plant stems again by using a different pair of calipers. b.one student measures the plant stem widths by using calipers. the other student types the measurements as they are taken into a computer spreadsheet. c.one student weighs liquids for the experiment by using a calibrated scale. the other student weighs liquids for the experiment by using a different calibrated scale.

Identify the structure in organisms that do not have kidneys that is adapted to regulate water balance

Asolution containing hci would likely have