The kidneys secrete erythropoietin to stimulate red blood cell production by bone marrow.
a. true
b. false
Answer: a. true
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Viruses that contain positive-strand genomes are incompatible to share genetic elements other positive-strand genomes
Indicate whether the statement is true or false.
Which of the following is the study of collective genomes of multiple interacting species in an environment?
a. pharmacogenomics b. proteomics c. genetic recombination d. metagenomics
Which of the following is the most direct result of the presence of acid chyme in the smalle intestine?
A. the liver produces insulin B. The pancreas produces hydrolytic enzymes C. the stomach produces pepsin D. The intestinal lining produces the hormone secretin E. The gall bladder releases bile
Sulfur dioxide is added to "must" in the production of wine to
A) improve the flavor. B) allow more control over the fermentation process. C) provide a necessary nutrient for the fermentation process. D) prevent tannins from leaching out of wood into the fermenting wine. E) both enhance flavor and promote fermentation.