Which of the following is considered an accessory digestive structure?
a. mouth
b. stomach
c. small intestines
d. large intestines
e. liver
ANSWER: e
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The ____ is a system of vesicles that wraps around each A band and I band and stores ions that are
used in muscle contractions.
a. neuromuscular junction b. Golgi apparatus c. endolemma d. microvillus e. sarcoplasmic reticulum
Genetic information in DNA and RNA is stored as a sequence of three nucleotide bases. On DNA a group of three nucleotides is called a _____, while on the complementary strand of mRNA, this sequence is called a ____ .
a) genome / proteome b) intron / exon c) base triplet / codon d) codon / anticodon e) base triplet / anticodon
Fossils currently exist for about how many species?
a. 1,000 b. 10,000 c. 100,000 d. 250,000 e. 500,000
The overwhelming majority of infections in the clinical environment are due to _________.
A) prions B) fungi C) viruses D) bacteria