Sentence examples for primordial organisms from inspiring English sources
Life originated about 3.5 billion years ago in the form of primordial organisms that were relatively simple and very small.
During the course of evolution, these primordial organisms were phagocytosed by more sophisticated eukaryotic cells, resulting in the evolvement of algae and plants.
Given the distribution of this RNA element, it may constitute a common mode for bacterial metal ion regulation, and its discovery suggests the possibility of additional RNA-based metal sensors in modern and primordial organisms.
If this scenario is correct, that is that primordial organisms were heterotrophic and had no need for developing new and improved metabolic abilities since most of the required nutrients were available, we can go back to the two questions that can be addressed, that is, why and how did primordial cells expand their metabolic abilities and genomes?
Genes associated with cell death and survival, embryonic development, organismal development, tissue development, cellular assembly and organization, and cellular function and maintenance are highly conserved, with homologues present in numerous primordial organisms including yeast (S. Cerevisiae), C. elegans, chlamydomonas, T. californica, and fruit fly (Drosophila).
Those primordial organisms had no need for developing new and improved metabolic abilities since most of the required nutrients were available.
These would have increased the effective complexity of this primordial organism.
Since the lower bound is more compatible with a molecular clock of FSFs and the fossil record, we can make reasonable inferences about the molecular make up of this primordial organism.
The primordial organic soup may have been quite complex, but it did not likely include all of the compounds found in modern organisms.
The last universal common ancestor represents the primordial cellular organism from which diversified life was derived.
Moreover, it can be concluded that the primordial photosynthetic organism performed nitrogen fixation, synthesized heme, and was cobalamin dependent.
