Question
[I picked d.]
How many species are estimated to be living on earth?
a.between 10,000 and 1,000,000
b.between 500,000 and 1 million
c.between 1 and 5 million
d.between 10 and 50 million
http://faculty.plattsburgh.edu/thomas.wolosz/howmanysp.htm
This is a political, not scientfic number. The more species one has, the more become endangered. d is probably the most cited number in political circles, but upwards to 200 million are commonplace in scientific estimates.
How many species are estimated to be living on earth?
a.between 10,000 and 1,000,000
b.between 500,000 and 1 million
c.between 1 and 5 million
d.between 10 and 50 million
http://faculty.plattsburgh.edu/thomas.wolosz/howmanysp.htm
This is a political, not scientfic number. The more species one has, the more become endangered. d is probably the most cited number in political circles, but upwards to 200 million are commonplace in scientific estimates.