Question: What type of meristem is responsible for secondary growth in plants?

Options:

1. Apical meristem
2. Lateral meristem
3. Intercalary meristem
4. Primary meristem

Correct Answer: Lateral meristem

Solution:

Lateral meristem, including the vascular cambium and cork cambium, is responsible for secondary growth, increasing the girth of stems and roots.