The part labelled I is the
Question 1 Report
The part labelled I is the
Answer Details
The diagram shows a longitudinal section of a snail (a gastropod mollusk). Four parts are labelled:
- I points to the hard, outer protective covering that sits on top of the snail's body. This is the shell.
- II is the mantle, the tissue layer just beneath the shell.
- III represents the visceral mass containing the internal organs.
- IV is the broad, flat, muscular foot used for locomotion.
The shell is a defining feature of most gastropods. It is secreted by the mantle and is composed largely of calcium carbonate. It serves as protection against predators and desiccation. Because label I points directly to this hard outer covering, the correct answer is shell.
Download The App On Google Playstore
Everything you need to excel in your exams
Personalized AI Learning Chat Assistant
200,000+ Exam Questions Across IGCSE, JAMB, WAEC & NECO
Over 3,900 Lesson Notes
Offline Support - Learn Anytime, Anywhere
Green Bridge Timetable
Literature Summaries & Potential Questions
Track Your Performance & Progress
In-depth Explanations for Comprehensive Learning