The National Climatic Data Center (NCDC) in Asheville, North Carolina is the world's largest active archive of weather data. According to the NCDC, each of the years from 1997-2009 represent the warmest global temperatures on record, dating back to
1880. Which of these would represent a biased conclusion based on this data?
A)
the data only dates back to the 1880's
B)
the average global temperature for 2007 as 58.00 °F
C)
the warmest year on record was 2005 and the coolest was 1911
D)
the automobile industry is solely to blame for the increase in global
temperatures

What claim did thorne make? what evidence supported his claim?

There are specialized producers that live in warm water vents deep in the ocean. these producers do not per-form from photosynthesis, but instead perform a similar process with iron and other chemicals. why do you think these producers use this process instead of photosynthesis?

Examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. polyploidy is creating new species. the two populations are not interbreeding freely. hybrid offspring of the two populations begin to appear. one species will increase into a population size twice as large as the other species.