An adaptation that is closely associated with hominin evolution is
A) hair.
B) lungs.
C) grasping hands.
D) omnivory.
E) a backbone.
C
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The nearest living relatives of crocodiles and alligators are
A. snakes. B. birds. C. turtles. D. lizards. E. manatees.
According to Darwin, natural selection is based on the ____ found in populations
a. acquired characters b. variations c. weakest members d. noncompetitors e. similarities
People tend to crave sweet and salty foods, but dislike bitter foods. What is the evolutionary explanation for this? What will be an ideal response?
When practicing aseptic culturing techniques, it is important to keep all of the following in mind except
A) surrounding surfaces are decontaminated before and after handling cultures. B) gloves and other protecting clothing may be required depending on the specimen being used. C) the media used to grow the specimen is sterile. D) all of the instruments and lab ware that directly touch the specimen is sterile. E) as long as nothing unintended touches the media, there will be no contamination.