Why Are Roots Adapted For Their Functions?

Roots take in water and
Mineral salts from the soil.

Water and mineral salts
pass up through the stem
Of the plant in xylem tubes.

1. Large extensions.

2. Large surface area.

3. Root cap,
  Protects and lubricates
  the growing root.

     4. Aerial roots grow down
  From stem to the soil for plant support.