One feature shared by modern humans and lacking in other Homo species is ____
a. a chin
b. a large brain
c. bipedalism
d. tool making
e. legs longer than arms
ANSWER: a
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Does the presence of the double bond in the hydrocarbon tail of oleic acid change the shape of the molecule? a. No, because the double bond strengthens the existing shape. b. No, because there is no double bond in oleic acid. c. Yes, because the double bond results in a bend in the molecule, forming a rightangle
d. Yes, because the double bond results in a circular structure to the molecule.
London has milder winters than British Columbia
due to the warm water picked up by the __________ from the __________. a. North Atlantic Current; Gulf Stream b. Gulf Stream; North Atlantic Current c. North Atlantic Current; Labrador Current d. Labrador Current; North Atlantic Current e. Labrador Current; Gulf Stream
What group includes the fastest, biggest, and smartest invertebrates?
A. Squids B. Bivalves C. Chaetae D. Cephalopods E. Nudibranchs
Blooms of certain dinoflagellates are associated with all of the following exceptÂ
A. Pfiesteria piscicida. B. euglenids. C. ciguatera. D. paralytic shellfish poisoning. E. red tides.