Dicots evolved ________ monocots.
A. before
B. after
Answer: A
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The simplest and the most common monosaccharide is a six-carbon sugar called:
A. galactose. B. lactose. C. cellulose. D. glucose. E. sucrose.
_____ selected species have a low rate of per capita growth.
A. r- B. p- C. K- D. n-1 E. n-
The genome sequence of Treponema pallidum ________.
A. should ultimately help us understand the mechanism by which this organism causes syphilis B. has led us to be able to completely eradicate this organism C. identified proteins that have already been used to produce the first successful vaccine for syphilis D. almost immediately provided explanations for how this organism causes syphilis
Albinism is due to the inability to make ________
A) tyrosine B) melanin C) hair D) collagen