Globalization results in a decrease in non-U.S firms investment across national borders
a. true
b. false
Ans: b. false
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In the traditional phylogeny (A), the phylum Platyhelminthes is depicted as a sister taxon to the rest of the protostome phyla and as having diverged earlier from the lineage that led to the rest of the protostomes
In the molecular phylogeny (B), Platyhelminthes is depicted as a lophotrochozoan phylum. What probably led to this change? A) Platyhelminthes ceased to be recognized as true protostomes. B) The removal of the acoel flatworms (Acoela) from the Platyhelminthes allowed the remaining flatworms to be a monophyletic clade clearly tied to the Lophotrochozoa. C) All Platyhelminthes must have a well-developed lophophore as their feeding apparatus. D) Platyhelminthes' close genetic ties to the arthropods became clear as their Hox gene sequences were studied.
Recently, fossils of a new species, called ________, were discovered in Indonesia. They were smaller than modern humans, and some researchers consider them an offshoot of H. erectus with a small body.
A) Homo habilis B) Neanderthals C) Homo afarensis D) Homo floresiensis
The sperm in the figure below were most likely produced by:
a. nondisjunction.
b. mutation.
c. X-linkage.
d. translocation.
e. normal meiosis.
In DNA
a. G pairs with T and A pairs with C. b. G pairs with A and C pairs with T. c. G pairs with C and A pairs with T. d. G pairs with C and U pairs with A.