Which evidence did carl linnaeus use to classify organisms?
a.physical characteristics
b.evolutionary history
c.physical characteristics and evolutionary history
d.physical characteristics, genetics, and evolutionary history

I think the correct answer from the choices listed above is option C. The evidence that Carl Linnaeus used to classify organisms are physical characteristics and evolutionary history. Carolus Linnaeus is the father of taxonomy, which is the system of classifying and naming organisms. Hope this answers the question.

Many trees are evergreen so that plants can photosynthesize right away when temperature rise, many trees that have needle-like leaves which shape  losses less water and sheds snow more easily than broad leaves waxy coating on needle-like prevent evaporation need-like leaves are dark in color allowing solar heat to absorbed many trees have branches that droop downward to help shed excess snow to keep the branches from breaking.