Question

during the nitrogen cycle, through which structure are nitrogen compounds first absorbed into the plant? roots leaves flower stem

Explanation:

Plants absorb nitrogen - containing compounds from the soil. The main plant structure for this absorption is the roots, which have root hairs that increase the surface area for uptake. Leaves are mainly for photosynthesis and gas - exchange, flowers are for reproduction, and stems provide support and transport but not the initial absorption of nitrogen compounds.

Answer:

A. roots