Class 11 Biology Chapter 4 – Animal Kingdom Study Material PDF Download | English & Tamil Medium | NEET 2027 Preparation | NEET Biology Tamil
Class 11 Biology Chapter 4 – Animal Kingdom Study Material PDF Download | English & Tamil Medium | NEET 2027 Preparation | NEET Biology Tamil
Download Class 11 Biology Chapter 4 Animal Kingdom Notes PDF in English & Tamil Medium for NEET 2027. NCERT notes, PYQs, MCQs & solutions.
Introduction NEET Syllabus
Welcome to NEET Biology Tamil – your free learning platform for NEET, CBSE, and Tamil Nadu State Board Biology preparation.
In this post students can download Class 11 Biology Chapter 4 – Animal Kingdom study materials in both English Medium and Tamil Medium.
These materials are useful for NEET 2027 aspirants, CBSE students, and Tamil Nadu State Board students.
NEET Syllabus
📚 Chapter Name
English:
Class 11 Biology Chapter 4: Animal Kingdom
Tamil:
வகுப்பு 11 உயிரியல் பாடம் 4 : விலங்கு உலகம்
📌 Available Study Materials
✅ Complete Chapter Notes – English Medium
✅ முழுமையான குறிப்புகள் – தமிழ் வழி
✅ NCERT Based NEET Notes
✅ Important Definitions
✅ Important Diagrams
✅ Important Tables
✅ Mind Maps / Short Notes
✅ Previous Year NEET Questions
✅ Chapter Wise Practice MCQs
✅ Answer Key with Detailed Solutions
About Chapter – Animal Kingdom
Animal Kingdom explains the diversity and classification of animals based on their body organization and evolutionary relationships.
Important concepts covered:
🔹 Basis of animal classification
🔹 Levels of organization
🔹 Symmetry
🔹 Germ layers
🔹 Coelom
🔹 Segmentation
🔹 Notochord
🔹 Non-chordates and chordates
Important scientists:
🔬 Aristotle – Early animal classification
🔬 Carolus Linnaeus – Modern taxonomy
🔬 Ernst Haeckel – Classification contributions
Important examples:
✔ Sycon
✔ Hydra
✔ Taenia
✔ Ascaris
✔ Earthworm
✔ Pila
✔ Starfish
✔ Amphioxus
This chapter is one of the most important chapters for direct NCERT line-based NEET questions.
🔥 NEET 2027 Importance of This Chapter
Animal Kingdom is a high weightage chapter in Class 11 Biology.
Previous Year NEET Question Trend:
NEET 2022 – 5 Questions
NEET 2023 – 4 Questions
NEET 2024 – 5 Questions
NEET 2025 – 4 Questions
NEET 2026 – 4 Questions
Students should focus mainly on NCERT examples, characteristic features and classification tables.
⭐ Important NEET 2027 Topics From This Chapter
⭐ Basis of Classification
⭐ Diploblastic & Triploblastic Animals
⭐ Acoelomate, Pseudocoelomate, Coelomate
⭐ Phylum Porifera
⭐ Cnidaria & Ctenophora
⭐ Platyhelminthes
⭐ Aschelminthes
⭐ Annelida
⭐ Arthropoda
⭐ Mollusca
⭐ Echinodermata
⭐ Hemichordata
⭐ Chordata Classification
⭐ Vertebrate Classes
⭐ NCERT Examples and Diagrams
📥 Download Study Material PDF
📘 Class 11 Biology Chapter 4 Animal Kingdom Notes – English Medium PDF
👇 Download Here English Notes
👇 Download Here English Notes 2
👇 Download Here English DPPs
👇 Download Here English Exercises
👇 Download Here
📗 வகுப்பு 11 உயிரியல் பாடம் 4 விலங்கு உலகம் குறிப்புகள் – Tamil Medium PDF
👇 Download Here Tamil Notes
📝 NEET Previous Year Solved Questions (with Exam Name & Year)
Question 1 (NEET 2026)
Which phylum contains animals having canal system?
(A) Cnidaria
(B) Porifera
(C) Annelida
(D) Mollusca
Question 2 (NEET 2025)
Radial symmetry is commonly found in:
(A) Earthworm
(B) Cockroach
(C) Hydra
(D) Frog
Question 3 (NEET 2025)
Pseudocoelom is found in:
(A) Ascaris
(B) Taenia
(C) Earthworm
(D) Starfish
Question 4 (NEET 2024)
Jointed appendages are the characteristic feature of:
(A) Mollusca
(B) Arthropoda
(C) Echinodermata
(D) Annelida
Question 5 (NEET 2024)
Water vascular system is present in:
(A) Porifera
(B) Mollusca
(C) Echinodermata
(D) Chordata
Question 6 (NEET 2023)
Notochord is the characteristic feature of:
(A) Non-chordates
(B) Chordates
(C) Arthropods
(D) Annelids
Question 7 (NEET 2023)
Comb plates are present in:
(A) Ctenophora
(B) Porifera
(C) Mollusca
(D) Amphibia
Question 8 (NEET 2022)
Flame cells are excretory structures of:
(A) Platyhelminthes
(B) Annelida
(C) Arthropoda
(D) Mollusca
Question 9 (NEET 2022)
Book lungs are found in:
(A) Prawn
(B) Scorpion
(C) Earthworm
(D) Starfish
Question 10 (NEET 2022)
Amphioxus belongs to:
(A) Urochordata
(B) Cephalochordata
(C) Vertebrata
(D) Hemichordata
✅ Answer Key + Detailed Solutions
1. Answer: B – Porifera
Explanation: Members of Porifera have a unique water transport system called canal system.
2. Answer: C – Hydra
Explanation: Hydra belongs to Cnidaria and shows radial symmetry.
3. Answer: A – Ascaris
Explanation: Ascaris belongs to Aschelminthes, which shows pseudocoelom.
4. Answer: B – Arthropoda
Explanation: Arthropods are characterized by the presence of jointed appendages.
5. Answer: C – Echinodermata
Explanation: Water vascular system is the unique feature of echinoderms.
6. Answer: B – Chordates
Explanation: Presence of notochord is the main characteristic feature of chordates.
7. Answer: A – Ctenophora
Explanation: Ctenophores contain comb plates for movement.
8. Answer: A – Platyhelminthes
Explanation: Flame cells help in excretion and osmoregulation.
9. Answer: B – Scorpion
Explanation: Book lungs are respiratory organs present in arachnids.
10. Answer: B – Cephalochordata
Explanation: Amphioxus belongs to Cephalochordata.
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