The driving force behind the evolution of the human mind has been primarily due to pressures stemming from
A. navigating a larger territory.
B. interacting with other minds.
C. tracking resources scattered across space and time.
D. the last Ice Age
Answer: C. tracking resources scattered across space and time.
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A researcher uses a probe complementary to the gene of interest and performs a colony hybridization experiment on a plate containing many bacterial colonies. Each bacterial colony contains a recombinant vector with a different piece of chromosomal DNA. What can be learned from this experiment?
A. The researcher can determine the level of expression for each gene represented. B. The researcher can identify colonies that contain the gene of interest. C. The researcher can identify colonies that have not taken up a vector. D. The researcher can determine the amount of mRNA in a specific colony. E. The researcher can determine the amount of DNA in each of the colonies.
A type III survivorship curve is characteristic
of
a. dogs. b. goats. c. hawks. d. clams. e. horses
What type of muscle fibers will be found in large percentages in the leg muscles of a person who excels at weight lifting but does not do well at running marathons?
A) slow-twitch B) fast-twitch C) intermediate D) high-density
Answer the following questions true (T) or false (F)
1. Bacteria store their DNA within a spherical nucleus. 2. When bacteria undergo binary fission, they produce identical daughter cells. 3. Most bacteria present in the human intestines are pathogenic.