Extinction has the effect(s) of
A) creating progress in evolutionary patterns
B) reducing both species diversity and the number of available ecological niches
C) reducing species diversity and opening up ecological niches
D) eliminating only species with "bad genes"
E) increasing both species diversity and the number of "good genes" shared by all organisms
C
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RNA uses a nucleotide called ________, instead of thymine, during the transcription process.
A. uracil B. codinine C. thiamine D. aspernine
How do cultural anthropologists use the word culture?
a. To refer to unchanging, traditional ways of doing things b. To designate which practices are more worthy of study than others c. To refer to the beliefs and customs of a people that distinguish them from others d. To describe a situation of high sophistication and education
Individuals with an abnormal number of sex chromosomes:
A. rarely survive to adulthood B. are always phenotypically female C. often show abnormal sex organs and are sterile D. all of these
Postmortem events are often of greater interest to forensic anthropologists than they are to bioarchaeologists
a. True b. False