Its tap root
It is called Geo-Tropism
Auxins which are plant hormones.
Phototropism
its an response :)
One of the plant's hormones called auxins
humans
When a plant grows toward or away from the direction of it's water source.
The stem of a plant bends and grows toward a source of light.The shoot of a plant grows in the opposite direction of gravitational pull.The roots of a plant grow towardwater-rich soil.
umm im pretty sure its responce :) hop i helped A plant growing toward light is an example of positive phototropism.
It wants sunlight! :) It grows toward the energy of the sun wanting more of it since it is on its side.
Taproot system
answer: yes, a plant that grows in sand grows stronger than a plant that grows in cotton or soil. =)