A.I. Explanation:

First sentence: Why this is the first line? This paragraph is the first because it introduces the main topic of honeybee colonies. It gives a broad overview of what will be discussed. It does not use any words that need prior context. Why other lines are not chosen? Paragraph 2 starts with "The colony" which refers back to the colony mentioned in Paragraph 1, so it cannot be first. Paragraph 3 starts with "While" which is a conjunction, so it cannot be first. Paragraph 4 starts with "Interestingly" which is also a connector, so it cannot be first.

Concluding sentence: Why this is the last line? This paragraph is the last because it wraps up the discussion about the roles of bees. It shows how the information connects back to the main topic of the colony's structure.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): Paragraph 2 connects to Paragraph 1 because it gives more details about the colony mentioned in Paragraph 1. This follows the Broader to Specific Strategy.
• Pair 2 (Paragraph 2 → Paragraph 3): Paragraph 3 connects to Paragraph 2 because it explains the roles of the queen and workers in the colony. This follows the Logical Order strategy.
• Pair 3 (Paragraph 3 → Paragraph 4): Paragraph 4 connects to Paragraph 3 because it talks about how the roles change over time. This follows the Cause and Effect Relationship strategy.