Q. Human impact on the Earth’s environment is poignantly demonstrated in Mississippi River drainage into the Gulf of Mexico. Every spring, high levels of nitrogen and phosphorous wash into the river from the Midwestern United States farming region and into the northern Gulf. These nutrients supply a huge algal bloom […]

Question: Why did giraffes develop long necks? 1)Describe an experiment to test this hypothesis. Be explicit about the methods you will use, the setting, the time that the experiment will last, and the variables you will measure. 2) Describe what types of results will illustrate your hypothesis or not. Make […]

A particular variety of corn has a gene for kernel color and a gene for height with thefollowing phenotypes: CC, Cc; purple kernelscc; white kernels TT, Tt; Tall stemstt; dwarf stems Two true breeding plants are crossed; one is true breeding for purple kernels and dwarf stems, and the other […]

To raise funds to meet its annual budget, a state government is debating whether to sell a large section of public forest to a logging company. Evaluate this plan in terms of two ecosystem services that the state might gain and two services the state might lose if the forest […]