From plants and bacteria to animals and humans, our world is filled with many living things. In fact, there are approximately 8.7 million species of plants and animals in existence, and only 1.2 ...

Cells are the basic unit of life — and the focus of much scientific study and classroom learning. Here are just a few of their fascinating facets. 3.8 billion That’s how many years ago scientists ...

Thomas Verny is a clinical psychiatrist, academic, award-winning author, public speaker, poet and podcaster. He is the author of eight books, including the global bestseller The Secret Life of the ...

Cell the Unit of Life MCQs: All living things have one thing in common: their building blocks. Either unicellular or multicellular, all organisms are formed of cells. Thus, knowing a cell and its ...