What is the correct rank order for relative toxicity (most to least) of the primary nitrogenous wastes generated by different animals?
A. ammonia ? urea ? uric acid
B. uric acid ? ammonia ? urea
C. urea ? uric acid ? ammonia
D. ammonia ? uric acid ? urea
E. urea ? ammonia ? uric acid
A. ammonia ? urea ? uric acid
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The portion of the electromagnetic spectrum between the 21-cm line of neutral hydrogen and the 18-cm line of OH is known as the ____________
Fill in the blank(s) with correct word
Which type of microscope has the greatest resolving power?
a. light microscopes. b. electron microscopes
Each of the following is a substrate for glycolysis except
A) galactose. B) mannose. C) lactose. D) fructose. E) All are substrates for glycolysis.
Phylogenetic trees are built using:
a) similarities in the physical structure of organisms. b) similarities in the embryological development of organisms. c) similarities in the DNA sequences of organisms. d) tissue samples. e) a), b), and c) are all correct.