What are groundfish?
A) various species that live in benthic habitats, such as halibut and flounder
B) fish that form the base of the food web of deep-water habitats
C) fish that are ground up and used for bait
D) various species that are found in estuaries
E) various species that live in littoral habitats, such as tuna and whitefish
Answer: A
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The designation of sediment grain size, from largest to smallest, is:
a. clay, silt, sand, gravel. b. gravel, sand, silt, clay. c. gravel, silt, sand, clay. d. clay, sand, gravel, silt. e. silt, clay, gravel, sand
The microorganisms that were a major component of the Cenozoic marine community were the
____________________, although some large forms have also been documented. Fill in the blank(s) with the appropriate word(s).
Which type of mineral deposit is associated with a black smoker?
A. A layered intrusion B. A vein deposit C. A massive sulfide deposit D. A disseminated deposit
Edward Suess thought the similarity of fossil plants and animals in Gondwana was due to ____
A)the appearance and disappearance of connecting land bridges on the southern continents B)the fact that Gondwana had always been one giant supercontinent C)the extremely slow rate of evolution that occurred during the late Paleozoic D)geographical barriers between Gondwana and Pangaea E)interbreeding among most related species