The key defining characteristic of hominids is:

a. the use of tools.
b. language.
c. opposable thumbs.
d. bipedal locomotion.
e. loss of supraorbital ridges.


D

Biology & Microbiology

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Lacunae are

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The cell walls of bacteria are a copolymer of _______ and _______.

a. proteins; lipids b. proteins; polysaccharides c. polysaccharides; peptides d. cellulose; lignin

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Which transcription factor binds directly to the TATA-box sequence?

A) TFIIC B) TFIIB C) TFIID D) enhancers E) TFIIA

Biology & Microbiology