All ecosystems must have a flow of energy to thrive. What are the three basic categories of these organisms?
a) algae, bacteria, mangroves
b) producers, consumers, decomposers
c) bacteria, virus, algae
d) zooplankton, phytoplankton, fish
e) omnivores, carnivores, herbivores
B
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The recent experience of the Chechens and Kurds is similar in that both
A) recently received independence after a long and bloody struggle. B) have struggled unsuccessfully for independence. C) have occupied Palestine for centuries before being driven out by Zionists. D) are the newest members of the European Union. E) are oil-rich members of the Commonwealth of Independent States.
A computer the size of one's fingernail used for applications, including calculators, electric typewriters, computers, industrial robots, and aircraft guidance systems is called a _________
Fill in the blank(s) with correct word
The most likely area for the development of tornadoes from this hurricane once it makes landfall is
A) A.
B) B.
C) C.
D) D.
Which waves indicate the most extensive shadow? Why?
A) P waves—because they cannot travel through the liquid outer core B) P waves—because they cannot travel through the solid inner core C) S waves—because they cannot travel through the liquid outer core D) S waves—because they cannot travel through the solid inner core