What are the two stages of counting? Please use complete sentences for full credit. 

What happens if you submit the following program?  

Which PROC FREQ step produced this two-way table? 

Which of the following best describes the process of eutrophication in aquatic ecosystems? 

Which statement best describes the sources of energy in U.S. energy consumption patterns?        

Which of the following pollutant(s) cause(s) acid rain? I.  Sulfur dioxide (SO2) II. Nitrogen oxides (NOx) III. Carbon monoxide (CO)

Use Table 13-1. If a community has 200,000 homes and 1% of those homes have Plasma televisions, how many kWh of excess energy are being consumed every year (365 days) than if those homes had Energy Star LCD televisions instead?  

Which of the following choices is best defined as a group of genetically compatible (able to mate individuals) living in the same geographical area? 

Which of the following characteristics best describes an organism adapted for r-selection? 

The fluid in glomerular capsule is similar to plasma except that it does NOT contain a significant amount of ________.