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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Approximately _____ of IVF pregnancies result in multiple births
a. 5% b. 10% c. 20% d. 50% e. 75%
Biology & Microbiology
Lacunae are
a. spaces inside a bone cell. b. the places where marrow is located. c. the location of the contractile units of muscle. d. spaces within the matrix. e. found only within cartilage.
Biology & Microbiology
The cell walls of bacteria are a copolymer of _______ and _______.
a. proteins; lipids b. proteins; polysaccharides c. polysaccharides; peptides d. cellulose; lignin
Biology & Microbiology
Which transcription factor binds directly to the TATA-box sequence?
A) TFIIC B) TFIIB C) TFIID D) enhancers E) TFIIA
Biology & Microbiology