What is the intention of the Svalbard Global Seed Vault?
a. protect crop supplies in the event of nuclear winter
b. create a time-capsule of modern plants for future botanists
c. supplement regional seed banks against accidental losses
d. quarantine dangerous genetically-engineered crops
c. supplement regional seed banks against accidental losses
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Dog breeders maintain the purity of breeds by keeping dogs of different breeds apart when they are fertile. This kind of isolation is most similar to which of the following reproductive isolating mechanisms?
A) temporal isolation B) behavioral isolation C) mechanical isolation D) habitat isolation E) gametic isolation
Blood in arteries
1.always travels away from the heart. 2.travels away from the heart only if it is oxygen-rich. 3.always travels toward the heart. 4.travels from the lungs. 5.is always oxygen-rich.
In the process of transcription, _____.
A. proteins are synthesized B. mRNA attaches to ribosomes C. DNA is replicated D. RNA is synthesized
Our "oldest" sense, which works in a very similar way in insects, is the sense of:
A) touch. B) vision. C) hearing. D) smell.