The smallest branches of the respiratory tree are the:a
pharynx.
b. tracheae.
c. bronchial tubes.
d. bronchioles.
e. bronchi.
D
Biology & Microbiology
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Most E. coli antisense RNAs work with a protein called ________ to regulate their target mRNAs.
A. Hfq B. MicF C. CAP D. None of the choices are correct.
Biology & Microbiology
You isolate a cellular structure and determine that it is composed of ?-tubulin and ?-tubulin. Based on this evidence,
you correctly identify this structure as a(n): a. structural MAP. b. microfilament. c. microtubule. d. actin filament. e. myosin filament
Biology & Microbiology
A viroid is
A. a small virus. B. a piece of RNA. C. a piece of protein. D. a cell that attacks viruses.
Biology & Microbiology
Which organelles supply energy (ATP) to plant cells?
A.) ribosomes B.) centrosomes C.) mitochondria D.) vacuoles
Biology & Microbiology