Question

to present the life cycle of dolphins? sequential
to describe types of ocean - dwelling mammals? topical
to describe the structure of a dolphins lungs? spatial

Explanation:

To solve this, we analyze each purpose and match it to the appropriate organizational pattern:

1. "To present the life cycle of dolphins"

A life cycle involves a sequence of stages (birth, growth, reproduction, etc.). So this matches the Sequential pattern.

2. "To describe types of ocean - dwelling mammals"

Describing types (e.g., dolphins, whales, seals) is a topical organization, where information is grouped by categories (topics). So this matches the Topical pattern.

3. "To describe the structure of a dolphin’s lungs"

Describing the structure (e.g., parts, their arrangement in space) uses a spatial organization, where details are presented based on their physical location/arrangement. So this matches the Spatial pattern.

Answer:

s:

• "To present the life cycle of dolphins" → Sequential
• "To describe types of ocean - dwelling mammals" → Topical
• "To describe the structure of a dolphin’s lungs" → Spatial