Sentences with phrase «celled organisms until»

Scientists think that mitochondria were once independent single - celled organisms until, more than a billion years ago, they were swallowed by larger cells.

Not exact matches

The advent of the nucleus — which differentiates eukaryotes (organisms whose cells contain a true nucleus), including humans, from prokaryotes, such as bacteria — can not be satisfactorily explained solely by the gradual adaptation of prokaryotic cells until they became eukaryotic.

But there are also certain things that if an investigator like [s] to do, and I came from cellular neurobiology having learnt from Grundfest and from Wade Marshall and from my period at the NIH how to study nerve cells in the brain; and I was until that point studying complex organisms — a cat; Aplysia fitted me to a tee.

The archaea, single - celled organisms confused with bacteria until Dr. Woese's discovery, are of interest to biologists studying the origin of life because they have certain primitive features and a liking for extreme environments, like the boiling springs of Yellowstone National Park and the superheated waters that swirl from deep - sea volcanoes.

This is all cool until we get to the interaction of insulin with the fat cells, namely the other vital role of insulin in the organism: insulin inhibits the breakdown of fat cells and stimulates the creation of body fat.

Water is essential to the optimal function of the organism; it helps your body flush out toxins and waste from all cells, so if you're not properly hydrated, the cells will tend to store water until they can get enough of it.