A population is polymorphic for a trait if it: - correct answer ✔✔has two or more phenotypes present
within a population
Sweating is a short term physiological change that occurs as response to a stress within minutes of
hours. Changes such as this which occur within minutes or hours reflect an ability called: - correct
answer ✔✔Acclimatization
True or false: The fossil skeletons of Homo erectus suggest that Homo erectus individuals care one for
another. - correct answer ✔✔True
To adapt to "oxygen starvation', the human body will - correct answer ✔✔make short term adaptations,
such as increasing heart and breathing rates
begin to increase red blood cell production, maxing its production at 3 months
develop very long term adaptations such as increasing lung volume over many generations
According to Bergmann's rule, - correct answer ✔✔the colder the climate, the larger the body mass
True or False: lactose intolerance among humans has been shaped by both biological and cultural
factors. - correct answer ✔✔True
Which of the following terms is commonly used interchangeably with the term subspecies? - correct
answer ✔✔Race
Scientists have tried to identify traits through which they can classify humans into different races. Which
of the following traits have researchers used to try to classify different races? - correct answer ✔✔Skin
reflectance
Craniometrics
Genetic Variation
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