The ecological efficiency of herbivores and carnivores is estimated by most authorities to be roughly ____
a. 1 percent
b. 10 percent
c. 30 percent
d. 60 percent
e. 90 percent
b
You might also like to view...
A nation-state
A) must be recognized by the United Nations Security Council in order to be legitimate. B) rules a territory that contains all members of a nation. C) is very large in most cases. D) is a concept that was old by the time of the Roman Empire.
What are the focal depth ranges for shallow-focus, intermediate-focus, and deep-focus earthquakes? What will be an ideal response?
The concept of basic industries originally referred to
A) manufacturing. B) trapping. C) mining. D) services like police and firefighters. E) banking.
Which of the following is true of the reaction: 2 H(g) ? H2(g)?
A) It is endothermic. B) It is exothermic. C) It is neither endothermic nor exothermic. D) None of these, the reaction cannot occur.