BIOLOGY
🌿 NCERT Biology • Class 9 to 12
BioWaleSir.com

One Stop Solution
for Biology

Biology is the study of complicated things that have the appearance of having been designed with a purpose.

Start Learning → Explore Classes
4
Classes
28+
Sub-Topics
100%
NCERT Based
Free
Always
Explore by Class

Choose Your Class

Complete NCERT Biology content — notes, MCQs, diagrams, practicals and more — organised chapter by chapter.

Science — Biology
Class 9

Cell structure, tissues, diversity in living organisms, natural resources & health.

Key Notes MCQs Diagrams PYQ
Explore Class 9 →
Science — Biology
Class 10

Life processes, control & coordination, reproduction, heredity & evolution.

Key Notes MCQs Mind Maps PYQ
Explore Class 10 →
Biology
Class 11

Diversity, structural organisation, cell biology, plant physiology & human physiology.

Key Notes Practicals Diagrams NEET
Explore Class 11 →
Biology
Class 12

Reproduction, genetics, evolution, human health, biotechnology & ecology.

HOTS Case-Based NEET Corner PYQ
Explore Class 12 →
Why BioWaleSir

Everything in One Place

Carefully curated content designed for both students and teachers — no distractions, only biology.

🖼️
Diagrams Library

All labeled exam diagrams — chapter wise, ready to draw

🧠
Mind Maps

Visual summaries of every chapter for quick revision

📊
Comparative Tables

Side-by-side comparisons — Mitosis vs Meiosis, and more

🎯
Case-Based Qs

CBSE 2021+ pattern case-based questions — fully solved

🔤
Mnemonic Bank

Memory tricks for taxonomy, sequences & tough topics

👩‍🏫
Teacher Resources

Lesson plans, PPTs, teaching aids — exclusive educator tools

BioWaleSir Logo
NCERT
Aligned Content
About BioWaleSir

Built for Biology.
Built for India.

BioWaleSir is built with one clear purpose — to be the most reliable, complete, and free Biology resource for Class 9 to 12 students and teachers in India. Every note, diagram, question, and resource is carefully aligned with NCERT and CBSE patterns so students can rely on us completely — no need to look elsewhere.

Started by a passionate biology educator, BioWaleSir grew from a simple Google Drive folder of notes shared with students to a full platform. The goal was always the same — give every student access to quality biology content, whether they are in a metro city or a small town, with internet or without, completely free.

A small team of dedicated biology teachers and education enthusiasts who believe that quality education should be accessible to all. Our content is reviewed by experienced CBSE educators and updated regularly to match the latest syllabus and exam patterns.

Get In Touch

Contact Us

Have a suggestion, request a resource, or want to collaborate? We'd love to hear from you.

Let's Connect

Whether you're a student who needs help, a teacher who wants to contribute, or someone with a great idea — reach out!

🌐biowalesir.com
📧edu.biowalesir@gmail.com
📱Chat on WhatsApp →
📍India — Serving students nationwide