The root is an important part of the plants. It's got the following functions:
This is the picture of a typical root. We can distinguish the following parts:
The primary root is the thickest . It grows downwards.
The secondary roots arise from the primary root. They are not as thick as the primary one. They go sidewards.
The rootcap is a kind of protection the roots end with. It is designed to drill the soil and it is able to guide the root growth by perceiving gravity.
The root hairs are minute filaments roots are covered with. They absorb water and nutrients from the soil.
Choose the suitable answer in each case:
2) Which one of these sentences is correct?