Search Results for: primordial
Primordial
primordial 1. First in order; primary; original; of earliest origin; as, primordial condition. The primordial facts of our... Read More
Living things
Living Things Definition A living thing pertains to any organism or a life form that possesses or shows the characteristics... Read More
Abiogenesis
Definition noun plural: abiogeneses a·bi·o·gen·e·sis, eɪbaɪəʊˈdʒɛnəsɪs (1) The idea that primitive life... Read More
First time! Human blood cell turned into a young sex cell
In essence, our body consists of two major types of cells – one group involved directly in reproducing sexually (called... Read More
Last universal ancestor
Definition noun The hypothetical primordial organism from which all other species of organisms on Earth... Read More
At Home in the Universe: The Search for the Laws of Self-Organization and Complexity
At Home in the Universe: The Search for the Laws of Self-Organization and Complexity ... Read More
Blastocoel
Definition noun The primordial, fluid-filled cavity inside the early forms of embryo, e.g. of blastula. Supplement The... Read More
Human Reproduction
Terminology and Concepts Primary reproductive organs are called gonads - testes in the male and ovaries in the female.... Read More
Fetal membrane
Definition noun, plural: fetal membranes A membrane surrounding the embryo or fetus and is involved in nutrition,... Read More
Endosymbiotic theory
A eukaryotic cell is distinct from a prokaryotic cell by the presence of membrane-bound cellular structures called... Read More
Head kidney
Head kidney --> pronephros 1. The definitive excretory organ of primitive fishes. Synonym: head kidney. 2. In the embryos... Read More
Spermiogenesis
Spermiogenesis Definition Spermiogenesis is the stage of spermatogenesis wherein the spermatids differentiate into mature... Read More
Cell differentiation
Cells are often described as the building blocks of life as they are the smallest unit used to build up organisms. Cells can... Read More
Intermaxillary segment
Intermaxillary segment The primordial mass of tissue formed by the merging of the medial nasal prominences of the embryo; it... Read More
Cyanobacteria
Cyanobacteria Definition Cyanobacteria is a group of photosynthetic bacteria widely distributed in various aquatic habitats... Read More
Sexual reproduction
Sexual reproduction is a mode of reproduction involving the fusion of haploid female gamete (egg cell) and haploid male... Read More
Cardiac muscle
Definition noun, plural: cardiac muscles (1) The heart muscle of the vertebrates (2) myocardium Supplement The muscles of... Read More
RNA-DNA World Hypothesis?
How did life start as we know it? In the scientific community, the "RNA World Hypothesis" has many adherents. Many believed... Read More