Problem: Please answer correctly the following question related to the paragraph below. Which scientist was located at a higher elevation? Two scientists went to Antarctica for research. Tim was assigned to East Antarctica, while John was assigned to West Antarctica. They spent 6 months there. Hint: East Antarctica is colder than its western counterpart because of its higher elevation. Weather fronts rarely penetrate far into the continent, leaving the centre cold and dry. Despite the lack of precipitation over the central portion of the continent, ice there lasts for extended periods. Heavy snowfalls are common on the coastal portion of the continent, where snowfalls of up to 1.22 metres (48 in) in 48 hours have been recorded.

A: Tim

Problem: Please answer correctly the following question related to the paragraph below. Would Nicaragua see less or more biomass production than England? Nicaragua is one of the most biodiverse countries in the Americas. They boast over five hundred species of birds, and thousands of species of plants. Across the pond in England the situation is completely different. Centuries of extensive farming, industrialization, and urban sprawls have made it one of the least biodiverse place on Earth. Hint: "There is now unequivocal evidence that biodiversity loss reduces the efficiency by which ecological communities capture biologically essential resources, produce biomass, decompose and recycle biologically essential nutrients... There is mounting evidence that biodiversity increases the stability of ecosystem functions through time... Diverse communities are more productive because they contain key species that have a large influence on productivity and differences in functional traits among organisms increase total resource capture... The impacts of diversity loss on ecological processes might be sufficiently large to rival the impacts of many other global drivers of environmental change... Maintaining multiple ecosystem processes at multiple places and times requires higher levels of biodiversity than does a single process at a single place and time."

A: more

Problem: Please answer correctly the following question related to the paragraph below. Would Bhutan most likely lose or retain its resource bases? The country of Qatar is opulent, to say the least. They have one of the highest per capita income in the world - exceeding that of Western Europe and North America. Over-consumption is the way of life in Qatar. While similarly small country of Bhutan puts emphasis on the happiness of its citizens in a different way. Bhutan does not give way to material over-consumption like Qatar does - it cares about its citizens' spiritual and social well-being. Hint: Overconsumption is a situation where resource use has outpaced the sustainable capacity of the ecosystem. A prolonged pattern of overconsumption leads to environmental degradation and the eventual loss of resource bases.

A: retain

Problem: Please answer correctly the following question related to the paragraph below. Would patient A have more or less T cells than patient B? Mike is a physician who treats HIV-infected patients. Today, he is seeing two patients, patient A and patient B. Patient A is infected with HIV, but patient B is not infected with HIV. Mike is trying to figure out how HIV-infected patient is different from the patient who is not infected with HIV. Hint: As time passes, the number of HIV copies keeps increasing, while the number of helper T cells keeps decreasing. The graph in Figure below shows how the number of T cells typically declines over a period of many years following the initial HIV infection. As the number of T cells decreases, so does the ability of the immune system to defend the body. As a result, an HIV-infected person develops frequent infections. Medicines can slow down the virus but not get rid of it, so there is no cure at present for HIV infections or AIDS. There also is no vaccine to immunize people against HIV infection, but scientists are working to develop one.

A:
less