B.Sc. Zoology Semester 1 MJC-1 Unit 1: Top 20 Short & 10 Long Questions

Hello friends! If you are preparing for the January- February B.Sc. Zoology examination 2026 and your MJC-1 paper is Diversity of Non-Chordates, this article is for you.

The syllabus is divided into four units. Today, we will cover Unit 1: Introduction to Non-Chordates. This unit includes the general features and classification (up to order) of ten phyla: Protozoa, Porifera, Cnidaria, Ctenophora, Platyhelminthes, Nemathelminthes, Annelida, Arthropoda, Mollusca, and Echinodermata.

In this article, I have provided the Top 20 Short Questions with Answers and Top 10 Important Long Questions to help you prepare for your examination.

This article is especially useful for B.Sc. Zoology students studying at Bihar universities, including Patna University, Patliputra University (PPU), Lalit Narayan Mithila University (LNMU), Babasaheb Bhimrao Ambedkar Bihar University (BRABU), Tilka Manjhi Bhagalpur University (TMBU), and Magadh University.

Since the four-year undergraduate programme was introduced in Bihar universities, many students have found it difficult to find MJC paper questions and study materials for each semester online. I created this resource to help students prepare for their examinations in one place.

Students can use these questions for practice and refer to their college notes or textbooks for detailed answers, diagrams, and definitions. I hope these study materials will help you prepare well and write your examination with confidence.

Top 20 Short Questions 

Q1. What are non-chordates?

Q2. What is the main difference between chordates and non-chordates?

Q3. What is the classification of animals?

Q4. What is Protozoa?

Q5. What are the main features of Porifera?

Q6. Why are sponges called pore-bearing animals?

Q7. What is Cnidaria?

Q8. What is Ctenophora?

Q9. What is Platyhelminthes?

Q10. What are Nemathelminthes?

Q11. What is Annelida?

Q12. What are the main features of Arthropoda?

Q13. Why is Arthropoda the largest animal phylum?

Q14. What is Mollusca?

Q15. What is Echinodermata?

Q16. What is the water vascular system?

Q17. What is a canal system in sponges?

Q18. What are spicules?

Q19. What is the difference between radial and bilateral symmetry?

Q20. What is the importance of animal classification?

Top 10 VVI Long Questions

Q1. Describe the general characteristics and classification of Protozoa, Porifera, Cnidaria, and Ctenophora.

Q2 Describe the general characteristics and classification of Platyhelminthes, Nemathelminthes, Annelida, Arthropoda, Mollusca, and Echinodermata.

Q3. Describe the general characteristics and classification of the phylum Protozoa with suitable examples.

Q4. Describe the general characteristics and classification of the phylum Porifera.

Q5. Describe the general characteristics and classification of the phylum Cnidaria.

Q6. Describe the general characteristics and classification of the phylum Ctenophora.

Q7. Describe the general characteristics and classification of the phylum Platyhelminthes.

Q8. Describe the general characteristics and classification of the phylum Nemathelminthes.

Q9. Describe the general characteristics and classification of the phylum Annelida.

Q10. Describe the general characteristics and classification of the phyla Arthropoda, Mollusca, and Echinodermata.

If you want to know what the B.Sc. Zoology Semester 1 MJC-1 examination paper looks like, you can check the Patna University previous year question paper using the link below. You can download the PDF for free and practise the questions.

👉 Download Free PDF: Patna University B.Sc. Zoology Semester 1 Question Paper

Do you want to prepare the answers to the Top 20 important short questions for B.Sc. Zoology Semester 1 MJC-1?

Get the Top 20 Short Questions with Answers PDF for only ₹29. It will help you practise important topics from the Diversity of Non-Chordates syllabus.

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