Answer:
Because the shoot system consists the leaves,flowers,twigs,stem and others that allow or make the plant to grow. And without the root system,the plant couldn't survive,because nothing will absorb water from the ground and distribute it to many parts of the plant.
Explanation:
When different types of tissues work together to perform a unique function, they form an organ; organs working together form organ systems. Vascular plants have two distinct organ systems: a shoot system and a root system. ... The root system anchors the plant while absorbing water and minerals from the soil.
