Select the correct part–development mapping to complete the analogy: “Plant : Seed :: ? : Bud” Pick the item for which “bud” is the corresponding early stage or part.

Introduction / Context:
This analogy pairs an organism or structure with its initial or formative unit. A plant arises from a seed; we must find the counterpart for which “bud” is the early form that develops into the mature structure.

Given Data / Assumptions:

• Seed → plant (developmental origin).
• Bud → an undeveloped or embryonic shoot/flower, many of which become flowers.
• We need the most immediate, familiar mapping found in basic biology.

Concept / Approach:
The common school-level mapping is “bud → flower,” as buds typically develop into flowers (or shoots). To maintain parallelism with seed → plant, choose the item that a bud primarily develops into in the simplest teaching model: a flower.

Step-by-Step Solution:
1) Fix relation: formative unit → mature structure.2) Map bud → flower (standard early-to-mature relation).3) Select “Flower” to keep the parallel clear and familiar.

Verification / Alternative check:
Botany primers: buds often blossom into flowers; some buds may develop into leaves/shoots, but the most common association in elementary analogies is with flowers.

Why Other Options Are Wrong:

• Leaf/Twig/Fruit/Root: While buds can form shoots/leaves, the conventional pair in such tests is “bud → flower.”

Common Pitfalls:
Overcomplicating plant development; stick to the most widely taught mapping.

Final Answer:
Flower