The lower the basic reproduction number of a pathogen, the higher the percentage of immune individuals necessary to provide herd immunity
Indicate whether the statement is true or false.
Answer: FALSE
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Parathyroid hormone's main function is to
A. increase glucose mobilization during stress or fasting. B. increase calcium by mobilizing the ion from bone. C. increase sodium through reabsorption from kidney. D. increase insulin-like growth factor I and linear body growth. E. synergize with thyroid hormone in various functions.
Fruit flies that have the dominant allele for the for gene will demonstrate all of the following traits except ________
a. have higher PKG (cGMP-dependent protein kinase) level b. remember olfactory cues longer c. learn faster d. switch feeding area frequently
Which of the following vitamins is fat soluble?
a. vitamin A c. vitamin C b. vitamin B6 d. all of these
Which ancestors of modern humans migrated out of Africa to populate the rest of the world?
a. Homo habilis b. Homo erectus c. Neanderthals d. Cro-Magnon e. Homo sapiens