Which of the photographs in the above figure
represents the angiosperms?
a. moss
b. fern
c. conifer
d. monocot
e. all of these
Answer: d
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Many insects can sense ultraviolet light. What evolutionary advantage does this ability provide the insect?
A. the ability to detect predators B. the ability to locate flowers for nectar, their food source C. the ability to avoid other flying insects D. the ability to sense balance and position
When examining the genetic code, it is apparent that ________
A) there are 44 stop codons because there are only 20 amino acids B) AUG is a terminating codon C) there can be more than one codon for a particular amino acid D) the code is ambiguous in that the same codon can code for two or more amino acids E) there can be more than one amino acid for a particular codon
osmosis
What will be an ideal response?
Sodium and potassium ions need to be pumped simultaneously against their concentration gradients. Which one of the transport proteins would be most effective at this?
a. Uniport b. Antiport c. Symport d. Any would work, as they can all pump ions out.