A solar cell is made of two types of semiconductors, called p-type and n-type silicon. The p-type silicon is produced by adding atoms—such as boron or gallium—that have one less electron in their ...

Within multicellular organisms, tissues are organized communities of cells that work together to carry out a specific function. The exact role of a tissue in an organism depends on what types of ...

Cell membranes protect and organize cells. All cells have an outer plasma membrane that regulates not only what enters the cell, but also how much of any given substance comes in. Unlike ...

More than half of your body is not human, say scientists. Human cells make up only 43% of the body's total cell count. The rest are microscopic colonists. Understanding this hidden half of ...

Take the evolution of sex, for instance. To make the move from asexual to sexual reproduction, nature took a system by which parent cells reproduced simply by dividing (asexual reproduction ...

In the beginning, one cell becomes two, and two become four. Being fruitful, they multiply into a ball of many cells, a shimmering sphere of human potential. Scientists have long dreamed of ...

Cells are the smallest unit of life and the building blocks for all organisms. Each component of a cell has its own function. Animal and plant cells differ and they have similarities. Nucleus ...

It feels like the Splinter Cell remake has been on its way for a decent while now, which isn't helped by the fact it's been over two years since we heard anything official about the game.

According to many experts, we may soon find ourselves using fuel cells to generate electrical power for all sorts of objects we use every day. A fuel cell is a device that uses a source of fuel ...

Here’s how it works. There's a lot of things to consider when searching for the best cell phone plan, from coverage to perks. But when I'm evaluating plans, the question I ultimately ask myself ...

Welcome to Mitosis vs. Meiosis. This half of the screen illustrates mitosis—the division of a cell's nucleus. Along with cytokinesis (the division of the rest of a cell), mitosis results in a ...