Evolution, speciation and classification GapFill

 Carl LinnaeusGregor MendelIsaac NewtonCharles Darwin is considered the father of evolution for his development of theory of evolution by natural selection. Although there was significant opposition at the time, his idea is now widely accepted due to evidence such as antibiotic resistance in  virusesprotistsbacteriainsects, or  ancient civilisationstree ringsfossilsastronomy, which are the preserved remains of organisms that died millions of years ago. By studying these remains, which may be of species that have since completely died out (become  heterozygousevolvedextinctprey), changes to species over time can be identified. However, gaps might exist as  photosyntheticaquaticsoft-bodiedhard-shelled or microscopic organisms will not be well preserved.

The number of different species formed as a result of evolution is vast. As a result of work by Linnaeus, species can now be grouped into  seventwoeightten well-defined groups, and named using the  biomemonopolyclassificationbinomial system. Increasing understanding of biology has led to different theories of classification, such as the three  prokaryotedomainmutantkingdom system, which divides organisms into archaea,  bacteriaHomo sapiensplantaemammalia and eukaryota.