Bio geographers have noted that the tropics have more terrestrial species than temperate regions. Which of the following is NOT a plausible explanation for this pattern?

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#Question id: 17214

#7. System Physiology – Animal

What is the effect of alarm reaction on cardiac system?

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#Question id: 4912

#8. Inheritance Biology

Correns described that the inheritance of variegated color on the leaves of certain plants was determined by the maternal parent only. What phenomenon does this describe?

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#Question id: 11999

#10. Ecological Principles

Rachel Carson would most likely have endorsed which of the following statements?

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#Question id: 1420

#4. Cell Communication and Cell Signaling

Examination of a cell’s structure reveals condensed chromatin, a shrunken cytoplasm, but unfragmented DNA and a lack of blebbing. If this cell has been triggered to undergo apoptosis by an extrinsic factor, which of the following events has NOT likely happened yet?

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#Question id: 9212

#9. Diversity of Life Forms

Burning fossil fuels releases oxides of sulfur and nitrogen. These air pollutants can be responsible for ________.