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Common descent is a concept in evolutionary biology applicable when one species is the ancestor of two or more species later in time. According to modern evolutionary biology, all living beings could be descendants of a unique ancestor commonly referred to as the last universal common ancestor (LUCA) of all life on Earth.
In many cases of interspecies friendship, the species are not normally seen together, and sometimes, one is of a species that ordinarily preys on the other in nature. [ 2 ] The concept of interspecies friendship is similar to that of mutualism in that two individuals from different species exist in a relationship where each organism benefits ...
All organisms are adapted to their environment to a greater or lesser extent. If the abiotic and biotic factors within a habitat are capable of supporting a particular species in one geographic area, then one might assume that the same species would be found in a similar habitat in a similar geographic area, e.g. in Africa and South America ...
For humans, we're 99.9 percent similar to the person sitting next to us. The rest of those genes tell us everything from our eye color to if we're predisposed to certain diseases.
The word "race", interpreted to mean an identifiable group of people who share a common descent, was introduced into English in the 16th century from the Old French rasse (1512), from Italian razza: the Oxford English Dictionary cites the earliest example around the mid-16th century and defines its early meaning as a "group of people belonging to the same family and descended from a common ...
a person with whom one shares a bedroom (also roomie) a person with whom one shares a house or apartment (UK: housemate or flatmate) root (v.) to fix; to rummage; to take root or grow roots to cheer ("I will be rooting for you"); to dig or look for (root around) * rotary a machine acting by rotation
a place to store things (US: closet) [52] a cabinet or small recess with a door and typically shelves, used for storage [52] custodian: an association football goalkeeper: a keeper or guardian of a person or thing one who cleans and maintains a building; a building superintendent, a janitor
Bengal cat, a cross between the Asian leopard cat and the domestic cat, one of many hybrids between the domestic cat and wild cat species. The domestic cat, African wild cat and European wildcat may be considered variant populations of the same species (Felis silvestris), making such crosses non-hybrids.