Travelers should be vaccinated against yellow fever when traveling to Sub-Saharan Africa or South America
Indicate whether the statement is true or false.
Answer: TRUE
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From an evolutionary standpoint, which of the following organisms would be the most fit?
a. a tree that produces thousands of seeds, of which three grow to sexual maturity b. a bird that produces offspring, of which three survive to reproduce c. an elephant that has a single offspring that nurses for 8 months and reaches sexual maturity in 10 years d. both (a) and (b)
Instinctive behaviors are ____, while learned behaviors are ____
a. acquired from observation; acquired from practice b. taught by parents; acquired from trial and error c. incomplete the first few times they are displayed; apparently a product of reason d. genetically programmed responses; dependent upon experience e. dependent upon experience; genetically programmed responses
f you consider the combined processes of photosynthesis and cellular respiration, the electrons found in H2O at the beginning of the light reactions end up attaching to ________ during respiration.
-O2 to make new H2O -NADPH to make new glucose -pyruvate to make ethanol -electron transport carriers to make O2 -none of the above
Some tRNAs have the ability to pair with different codons due to imprecise base pairing with the third base in the codon. How is this ability described?
a. by degeneracy b. by exon shuffling c. by the wobble hypothesis d. by alternative splicing