What adaptation is commonly found in organisms of deep pelagic and benthic communities?
a. strong skeletal development
b. gigantism
c. heavy feeding
d. short lifespan
e. fast moving
b
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The first colony to gain its independence in the Caribbean, in 1804, was
A) Cuba B) Puerto Rico C) Haiti D) Barbados E) Jamaica
With traditional intensive agriculture, farmers increase their crop yields by ____.
A. increasing their inputs of human and draft-animal labor B. using heavy equipment, along with large amounts of fossil fuels C. producing only enough for their family's needs D. increasing monocultures E. increasing greenhouse-raised crops
The IPCC concludes that temperature increases, sea-level increases, and rainfall changes are effectively irreversible for a period of "________" after CO2 emissions are stabilized
A) days B) weeks C) months D) years E) centuries
Channelization strategies include all of the following except
A. deliberately cutting off a meander. B. straightening a channel. C. dredging and deepening a channel. D. building a flood-control dam.