The three principal organs of seed plants are roots, stems, and leaves. Roots: absorb water and dissolved nutrients. anchor plants in the ground.
The answer is D.rainforest. it is a very complex ecosystem with variety of plants and animals.
An example of photosynthesis is how plants convert sugar and energy from water, air and sunlight into energy to grow. The biological synthesis of chemical compounds in the presence of light
B. Stems absorbed water and minerals from soil
Hope this helps! :)