- Trending Categories
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Why do organisms breath ?
Organisms need breathing to survive and it provides Oxygen which is essential for an organism. Oxygen provides energy to cells to move and to reproduce. It also helps to send carbon dioxide, which is harmful to us. Without breathing no organism survives.
Advertisements