(par 4. 2. 1 ) Hybrid (biology) – taken from wikipedia
From Wikipedia, the free encyclopedia https://en.wikipedia.org/wiki/Hybrid_(biology) Hercules, a “liger“, a lion/tiger hybrid. In biology a hybrid, also known as cross breed, is the result of mixing, through sexual reproduction, two animals or plants of different breeds, varieties, species or genera.[1] Using genetic terminology, it may be defined as follows.[2] Hybridgenerally refers to any offspring resulting from the breeding of two genetically […]
(par 4. 1 ) Species – taken from wikipedia
https://en.wikipedia.org/wiki/Species From Wikipedia, the free encyclopedia The hierarchy of biological classification‘s eight major taxonomic ranks. A genus contains one or more species. Intermediate minor rankings are not shown. In biology, a species (abbreviated sp., with the plural form species abbreviated spp.) is one of the basic units of biological classification and a taxonomic rank. A species is often defined as the largest group of organisms in which two individuals are capable […]
(par 4. 1 ) Diversity of organisms
https://www.le.ac.uk/se/centres/sci/selfstudy/eco7.htmThe total number of species living on the planet is imprecisely known and published estimates vary from 12 million to over 100 million. This is because there are large numbers of species yet undiscovered and undescribed, and there is not always agreement on whether certain organisms should be regarded as separate species. The total number […]