Weak bones and rickets in children are due to a deficiency of ____
a. vitamin D
b. vitamin E
c. calcium
d. vitamin A
e. thiamin
ANSWER: a
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You are performing a karyotype for the first time and you forget to add the colchicine. How do you predict this will affect your karyotype?
A. No affect - your karyotype will look normal. B. You will be unable to see any chromosomes under the microscope. C. You will only be able to see one of each chromosome. D. The chromosomes in some cells will look normal (highly compacted) but in other cells distinct chromosomes will be hard to identify
Gardasil prevents infection by group B Streptococcus types 6, 11, 16, and 18.
Answer the following statement true (T) or false (F)
The term __________ describes a state where the
body’s internal fluid environment is maintained within a tolerable range. a. metabolism b. equilibrium c. homeostasis d. integration e. compartmentalization
Denitrifying Bacteria and Archaea are chemoorganotrophs that grow by anaerobic respiration using ________ and producing ________
a. nitrate (NO3–) or nitrite (NO2–) / dinitrogen gas (N2) or nitrous oxide (NO) b. dinitrogen gas (N2) or nitrous oxide (NO) / nitrate (NO3–) or nitrite (NO2–) c. dinitrogen gas (N2) or nitrous oxide (NO) / ammonia (NH3) or CO2 d. nitrate (NO3–) or nitrite (NO2–) / ammonia (NH3) or water