Blood pH is kept near a value of 7.3-7.5 because of ____.
A. salts
B. buffers
C. acids
D. bases
E. water
Answer: B
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The genetic material of all living organisms is ____
a. protein b. deoxyribonucleic acid c. ribonucleic acid d. glycoprotein e. polypeptide
The zygomycete Pilobolus is noteworthy for its ability to ________
a. become an intracellular parasite of humans b. shoot its spores several meters c. produce truffles, a gourmet food d. infect amphibians
Together, follicle-stimulating hormone and luteinizing hormone are
A. metabolic hormones. B. growth hormones. C. adrenocorticotropic hormones. D. gonadotropic hormones.
If 5-bromouracil was added to a culture of actively dividing bacterial cells, resulting mutations could eventually become a stable part of the cellular genome.
Answer the following statement true (T) or false (F)