If you hear a friend call someone a "Neanderthal," why might it conceivably be a compliment?
A) Neanderthals were more lightly built than modern people and therefore physically more attractive.
B) Neanderthals cared for the old and sick.
C) Neanderthals were more creative than modern people.
D) Neanderthals had better tools than the modern species.
B
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What is tolerance, and why must the adaptive immune system exhibit tolerance?
What will be an ideal response?
A behavior that has evolved to aid relatives, although at personal risk, and thus increases the chance of your genes being passed on to the next generation is known as
A. altricial behavior. B. instinctive behavior. C. kin selection. D. operant conditioning. E. adaptive behavior.
If a pedigree of several generations shows only females affected by a particular trait, it cannot be a(n) ____ trait
a. autosomal recessive b. autosomal dominant c. Y-linked d. X-linked recessive e. X-linked dominant
Which of the following statements concerning transcription in bacteria is FALSE?
A. It occurs in the nucleoid region. B. Sigma factors are parts of RNA polymerase that recognize promoter regions. C. Different RNA polymerases are required for synthesis of mRNA, rRNA, and tRNA. D. Termination is either self-induced or due to the presence of Rho protein. E. There are a variety of sigma factors that affect transcription.