TLS Online TPP Program

#Question id: 5006


The oxygen revolution changed Earthʹs environment dramatically. Which of the following adaptations took advantage of the presence of free oxygen in the oceans and atmosphere?

#Unit 11. Evolution and Behavior
  1. the evolution of cellular respiration, which used oxygen to help harvest energy from organic molecules

  2. the persistence of some animal groups in anaerobic habitats

  3. the evolution of photosynthetic pigments that protected early algae from the corrosive effects of oxygen

  4. the evolution of chloroplasts after early protists incorporated photosynthetic cyanobacteria

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TLS Online TPP Program

#Question id: 9159

#Unit 9. Diversity of Life Forms

Which of the following investigations would shed the most light on the future distribution of organisms in temperate regions that are faced with climate change?

TLS Online TPP Program

#Question id: 9157

#Unit 9. Diversity of Life Forms

At 15-30°N, air masses formed over the Pacific Ocean are moved by prevailing westerlies, where they encounter extensive north-south mountain ranges. Which statement best describes the outcome of this encounter between a landform and an air mass?

TLS Online TPP Program

#Question id: 9156

#Unit 9. Diversity of Life Forms

Generalized global air circulation and precipitation patterns are caused by ________.

TLS Online TPP Program

#Question id: 9153

#Unit 9. Diversity of Life Forms

Imagine some cosmic catastrophe jolts Earth so that its axis is perpendicular to the orbital plane between Earth and the sun. The most obvious effect of this change would be ________.

TLS Online TPP Program

#Question id: 9151

#Unit 9. Diversity of Life Forms

What would be the effect on climate in the temperate latitudes if Earth were to slow its rate of rotation from a 24-hour period of rotation to a 48-hour period of rotation?

TLS Online TPP Program

#Question id: 9050

#Unit 9. Diversity of Life Forms

If an ecologist were studying the regional interactions among multiple populations of different species and how they influence the exchange of materials between their various environments, then this would be an example of which kind of research?