While on the Beagle, Darwin was influenced by a book by Charles Lyell that suggested that Earth was ________ and sculpted by geologic processes that ________ today
A) old... continue
B) old... no longer occur
C) young... continue
D) young... no longer occur
A
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The first fish:a
were small and jawless but had bony armor. b. appeared about 2 billion years ago. c. were the lobe-finned fish. d. appeared in the Silurian period. e. developed in the Precambrian period.
A tube that is 50% darkened in the Bile esculin test most likely contains which of the following streptococcal species?
A) S. agalactiae B) S. pneumoniae C) S. equisimilis D) E. faecalis
A segmented genome can result in antigenic shift
Indicate whether the statement is true or false
Which of these is an example of a medical application for animal cloning?
A) cloning cows that produce more milk B) cloning turkeys that have larger breast muscles C) cloning hamsters to produce human erythropoietin (EPO) D) cloning chickens that lay more eggs E) cloning sheep that produce more wool at a younger age