Punjabi Compulsory
ਪੁਸਤਕ ਕਾਵਿ ਸੁਮੇਲ ਦਾ ਅਧਿਐਨ
ਪੰਜਾਬੀ ਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼਼
Biodiversity and Cell-biology_1
Biodiversity is the variety and variability of animals on Earth. Biodiversity is typically a measure of variation at the genetic, species, and ecosystem level. The cell is the basic structural, functional, and biological unit of all known organisms. A cell is the smallest unit and called the "building blocks of life". The study of cells is called cell biology, cellular biology, or cytology.