In the Studies by David Tilman of the University of Minnesota

question 18

Multiple Choice

In the studies by David Tilman of the University of Minnesota and John Downing of the University of Iowa, reported in the journal Nature in 1994, they established and monitored 207 plots of Minnesota grasslands for seven years. During the study period, Minnesota's worst drought in 50 years occurred (1987-1988) . The ecologists found that those plots with the greatest number of plant species lost ____ ground cover, as measured by dry weight, and recovered faster than species-poor plots.

• A) less
• B) more
• C) no detectable
• D) only deciduous
• E) detectable

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Definitions:

Sports

Activities involving physical exertion and skill, often competitive, where an individual or team competes against another or others for entertainment.

Caregivers

are individuals who provide care for someone who is sick, elderly, or unable to take care of themselves, often a family member or professional provider.

Personality

The combination of characteristics or qualities that form an individual's distinct character, influencing their behaviors, thoughts, and emotions.

Psychological costs

The mental and emotional strain or negative impacts experienced by individuals as a result of certain actions or decisions.