Answer:
Primary growth in land plants occurs at the apical meristem.
Step-by-step explanation:
The apical meristem is a region of actively dividing cells located at the tips of shoots and roots. It is responsible for the elongation and differentiation of cells, leading to the vertical growth of the plant. The apical meristem gives rise to primary tissues, such as the primary xylem, primary phloem, and ground tissue, which contribute to the primary growth and development of the plant.