Consider a tadpole becoming a toad. You would expect to find it changing its form of nitrogenous waste from ________ to __________.
A. ammonia, urea
B. urea, ammonia
C. uric acid, urea
D. urea, uric acid
E. uric acid, ammonia
A. ammonia, urea
Biology & Microbiology
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Histone modification occurs only during early development
A. true B. false
Biology & Microbiology
Bacillus anthracis strains can be separated into five categories based on
A. spore morphology. B. a genetic assay that detects variable numbers of tandem repeats in various genes. C. membrane lipid composition as determined by gas chromatography. D. serological assays for lipopolysaccharide variants.
Biology & Microbiology
Hydrogen bonds join amino acids in the polypeptide chain. Indicate whether the statement is true or false
Biology & Microbiology
When blood calcium levels fall, the ________ secrete a hormone that causes greater calcium release from the bones
Fill in the blank(s) with correct word
Biology & Microbiology