Meeting of cool and warm air masses
The possible result of the founder effect would be loss of genetic variation. The reason why this is so is because by definition, the founder effect is often considered to be the cause for a essened genetic variation in a specie or a certain area where organisms thrive.
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D-T helper cells kill virus infected cells
Cell culture is when cells are grown under controlled conditions and usually outside of their natural environment. Organ culture like culturing roots, root hairs ,shoot tip, buds, cotyledons ,ovules ,pollen grains, young leaves, these are organs. Hoped I helped!