Chapter 12 and 13 assessment
Data suggest that the average global temperature will increase by 2°C by the year 2030. If this occurs, a major concern for humans would most
likely be that-
o
the threat of extinction of land organisms will decrease.
the availability of salt water for agricultural use will increase.
O sea levels will rise enough to flood some coastal areas.
O
long-term stability of the climate will begefit ecosystems.

For a comparative or experimental investigation, scientists often make a testable about a scientific question, and then they test it in the investigation. a.control b.hypothesis c.procedure d.system

The idea that all living things are made up of cells is considered scientific law. this means the idea is an emerging scientific idea that has a logical explanation. has been tested with similar results at least twice. is supported by scientific consensus and a large amount of evidence. has been rejected only once by the scientific community

Residential construction is expanding in florida, the expansion has caused fragmentation of habitats, one of the results of the increased construction is a decrease in the number of large predators such as the coyote, black bear and pool panther, which will be the most immediate local result of this fragmentation? 1)large predators will become extinct 2)decrease in middle sized predators 3)increase in population of top carnivores 4)increase in population of prey species