- A: Apical meristem - responsible for primary growth, increasing the length of the root.
- B: Zone of elongation - cells here grow and elongate, pushing the root tip further into the soil.
- C: Zone of maturation (differentiation) - cells differentiate into specific types (e.g., epidermis, cortex, vascular tissue) and develop root hairs.
- D: Root cap - protects the delicate apical meristem as the root pushes through the soil.
Parent Tip: Review the logic above to help your child master the concept of earthworm worksheet answers.