Characteristics of birds include all of the following EXCEPT
A. modified reptilian scales as feathers.
B. a modified skeleton with a fused collarbone and a keel.
C. hard-shelled eggs.
D. endotherms.
E. aquatic reproduction.
Answer: E
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A. farmer's lung. B. German measles. C. serum sickness. D. an Arthus reaction.
Which statement is true about minerals?
A) Minerals will not dissolve in water. B) Some minerals contain carbon. C) Minerals cannot be made by the body. D) Minerals are not used by body cells.
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In order to distinguish them from bacterial flagella, archaeal flagella have been renamed as archaella because ________.
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