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TLS Online TPP Program

#Question id: 16897

In a report by ABC News, the headlines read “City Living Increases Men’s Death Risk” The headlines were based on a study of 3,617 adults who lived in the United States and were more than 25 years old. One researcher said, “Elevated levels of tumor deaths suggest the influence of physical, chemical and biological exposures in urban areas... Living in cities also involves potentially stressful levels of noise, sensory stimulation and overload, interpersonal relations and conflict, and vigilance against hazards ranging from crime to accidents.” Is a conclusion that living in an urban environment causes an increased risk of death justified?

#Section 3: Mathematics and Quantitative Ecology
  1. Yes, because the study was a randomized study.
  2. Yes, because many of the men in the study were under stress.
  3. No, because the study was a retrospective study.
  4. No, because the study was an observational study
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TLS Online TPP Program

#Question id: 12673

#Section 5: Applied Ecology & Evolution

Burning fossil fuels releases oxides of sulphur and nitrogen. Ultimately, these are probably responsible for
TLS Online TPP Program

#Question id: 12674

#Section 5: Applied Ecology & Evolution

You  have  a  friend  who  is  wary  of  environmentalists? claims  that  global  warming  could  lead  to  major  biological change on Earth. Which of the following statements can you truthfully make in response to your friend's suspicions?
TLS Online TPP Program

#Question id: 12675

#Section 5: Applied Ecology & Evolution

Use the incomplete diagram below, illustrating some of the steps involved in eutrophication to answer the following questions
What would be a likely entry for box A?

TLS Online TPP Program

#Question id: 12676

#Section 5: Applied Ecology & Evolution

Use the incomplete diagram below, illustrating some of the steps involved in eutrophication to answer the following questions.

What would be a likely entry for box B?

TLS Online TPP Program

#Question id: 12677

#Section 5: Applied Ecology & Evolution

Aquatic ecosystems that are most readily damaged by acid are those that lack an important buffer that dissolves into the runoff after a precipitation event. What is this buffer?
TLS Online TPP Program

#Question id: 12755

#Section 5: Applied Ecology & Evolution

Which of the following statements best describes why biologists are currently concerned with global warming and the thawing of permafrost in many areas of the tundra biome?