DNA from algae that causes them to produce a light-sensitive protein on their cell surface.

like stem cell therapy, or genetically modified foods, or cloning land on the ethical and

And they're not like your average skin cell

Each red blood cell in our blood lives for about 120 days.

If they fail, a cell can turn into a cancer cell.

But this is a numbers game. Given enough time, a cell will

You can either increase the number of cells, called hyperplasia, or you can make each cell bigger, called hypertrophy.

If you look at a muscle cell under a microscope, what you will see are long tubes of fibres running along the length of the cells.

[cell phone ringing]

Conversely, supposedly synchronous forms like cell phone and Zoom calls tend to have a slight delay that can throw a wrench into the normal conversational flow.

Instead of one large lipid droplet in a white fat cell,

the brown fat cell is one tightly packed bag of mitochondria.

The US purchases this from Bell Labs⏤the first commercial silicon solar cell.

the first commercial silicon solar cell.