Plants don't just grow, they build. From towering trees to delicate flowers, complex plant shapes are sculpted with ...

Tropical forests have the highest biodiversity and primary productivity ... to slow decomposition rates and plants retain nutrients in long-lived evergreen tissues. Nitrogen fixation by lichens ...

Cells are the smallest unit of life. Cells in multicellular plants and animals are arranged into tissues, organs and organ systems. Cells. Tissues. Organs. Organ systems. And the organism itself.