Biogeochemical cycles should be regarded
A) primarily within a terrestrial ecosystem.
B) primarily within an oceanic ecosystem.
C) primarily linking terrestrial and oceanic ecosystems.
D) with a global perspective.
D
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The proportion of the total air pressure that is exerted by an individual gas in a gas mixture is referred to as the
A. partial pressure of that gas. B. gas-specific gravity of that gas. C. total pressure of that gas. D. incomplete pressure of that gas. E. barometry of that gas.
Peter and Rosemary Grant are known for their work on
A) Tenebrionid beetles. B) marine iguanas. C) Galápagos tortoises. D) Darwin's finches.
In balanced translocation heterozygotes, which pattern of chromosome segregation produces viable gametes and progeny?
A) adjacent-1 segregation B) adjacent-2 segregation C) alternate segregation D) Adjacent-1 and alternate segregation are both viable. E) Adjacent-1, adjacent-2, and alternate segregation are all viable.
Excretion is the movement of substances from the ________ to the ________
A) filtrate... blood B) kidney... urinary bladder C) blood... filtrate D) kidneys... outside