In a commensal relationship,
A. Two species live together and both suffer
B. One species benefits while the other suffers
C. Two species live together and both benefit
D. Two species live together and neither benefits nor suffers
E. One species benefits while the other neither suffers nor benefits
Answer: E
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Refuse-derived fuel has ________ energy content than raw refuse, but requires energy ________ before burning.
A. About the same; enrichment B. A lower; to sort C. A lower; enrichment D. A higher; to sort E. A higher; enrichment
Resource management for the poor of the world is most vital as it relates to
A) investment by developed nations. B) the generation of taxes for the government. C) common-pool resources. D) family planning.
Determining that there were 13 different species of finches, Darwin proposed that they arose by ________
A) natural selection B) disruptive selection C) genetic drift D) stabilizing selection E) convergent evolution
Use the map below to answer this question.
Which location will become warmer in the next 12 hours?
A. A B. B C. C D. D E. E