Our modern system of classifying organisms is based on older systems, mostly that of Carl Linnaeus. The system developed by Linnaeus classified organisms using what characteristic?
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Anatomical similarities
Kind of habitat
Mode of reproduction
Genetic makeup

population. population is the number of people or animals in a particular place. an example of population is over eight million people living in new york city.

here is your answer hope i .

sex cells are usually half's then they find another half and make a fertilize egg