Sentences with phrase «very simple organisms»

It also offers an opportunity to study learning types in other very simple organisms, such as viruses or bacteria.

Not exact matches

Just as a mountain climber can not jump to the top of the Matterhorn, a (relatively) simple organism like a bacterium can not even conceivably become a complex plant or animal except in very gradual stages.

Recombinant DNA research has been done primarily on bacteria, one - celled organisms smaller than animal or plant cells and simpler in structure, yet capable of very complex chemical activity.

In vegetables and perhaps in very simple animals no such dominant occasion occurs, but in the higher organisms, especially where a fully developed central nervous system and brain is found, there is strong indication of centralized control of many aspects of the animals behavior.

Indeed, modern ecosystems depend on the persistence of bacteria and fungi and other relatively very simple and archaic life forms to break down dead organisms and recycle nutrients.

It may have once been as simple as an old computer program, merely parroting what we told it, but now it is more like a very complex organism that often follows its own urges.»

«What is surprising is that these simple organisms with a very small nervous system perform — or approximate — fairly complex, multistep, long - term planning strategies,» says Sharpee.

It also lacks the energy - generating mitochondria present in most living things and digests food with fermentation enzymes found only in bacteria and other very simple single - celled organisms.

Functional perilipins (PLIN proteins encoded by the PLIN genes)(Lu et al., 2001) have been identified in very diverse organisms such as Drosophila (Teixeira et al., 2003), Dictyostelium (Du et al., 2013) and fungi (Wang & St Leger, 2007) and protein databases list clear orthologues in diverse, non-plant eukaryota, including the simplest metazoan Trichoplax adherens, sponges, crustaceans, and choanoflagelates (UniProt proteins B3RRM2, I1GA14, G5DCP6, F2UJD9, respectively).

When I was a student, I became interested in microbes because they were presented to me as these very interesting yet simple organisms, which scientists could isolate to understand how they worked.

Previously, we thought that fresh water on early Mars was a lot less reliable, drying up every few hundred years, which would've made it very hard for simple organisms to establish a beachhead.

The reason for this is very simple: when you don't eat enough to support the healthy functioning of every system in the organism for longer periods, your body slows down some of them in an effort to spare energy for more vital functions, and the reproductive system is the first one to get shut.

In very simple terms, this theory means that our immune system begins to attack our thyroid gland because we are infected with a pathogenic organism (like a bacteria, parasite, or virus), that looks similar to components of the thyroid gland.