Light exposure signals an area of the brain called the suprachiasmatic nucleus, a cluster of cells near the spot where the optic nerves cross.
Cells migrate together, you get a cluster of cells that's about double the density of the surrounding cells, which goes on to become the dermal papilla.
Make no mistake, he told me, that cluster of cells is the same way you and I and all the rest of us started our lives.
Well, one researcher told me he believes this five-day-old cluster of cells is not an embryo, not yet an individual, but a pre-embryo.
It is a form of blastula that develops from a berrylike cluster of cells, the morula.
A cluster of cells might also be able to feed more efficiently in some cases.
Diana wonders what part of her is creating this reality -- Was there some cluster of cells in her brain that had Timmy imprinted on them?" Inanimate objects come to life, and living creatures are married to their own deaths.
The same fundamentalists oppose embryonic stem cell research because it entails the destruction of an early embryo and then a process of cloning to start the cycle - even though only a microscopic cluster of cells is involved.
Such opposition required a belief that a cluster of cells (the embryo) the size of the period at the end of this sentence is as important (more important?) than a seriously ill human being.
IT IS hard for some people to see the small cluster of cells known as a blastocyst as a human being.
At some point, after months or even years as a harmless cluster of cells, tumours may suddenly begin to generate blood vessels.
