Identify these nitrogenous wastes.
A: ________B: ________C: ________
What will be an ideal response?
A: ammonia
B: urea
C: uric acid
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The 3' cleavage and polyadenylation of mRNA is partly defined by the sequence:
A. AAUAAA. B. AAAAAA. C. CCCGGG. D. GCGCGC.
Timber wolf populations are partially controlled by wolf behavior. For example, wolves form packs and are territorial. Therefore, only a finite number of wolves will comprise a pack and occupy a relatively large territory. Which of the following best describes this type of population-regulating mechanism?
a. competitive exclusion mechanism b. niche-controlling mechanism c. habitat-controlling mechanism d. extrinsic mechanism e. intrinsic mechanism
Cellular respiration involves all of the following except
A. the breakdown of molecules. B. the release of carbon dioxide. C. the release of energy. D. breathing in and out. E. the synthesis of ATP.
A stronger stimulus results in which one of the following?
A) larger action potentials B) greater frequency of action potentials C) action potentials that travel more quickly D) activation of more receptors and initiation of more action potentials E) neural fatigue