The summing up of nerve signals by ________ is called ________.
A. sensory receptors, integration
B. sensory receptors, sensation
C. the cerebral cortex, sensation
D. the cerebral cortex, perception
E. the reticular activating system, perception
Answer: A
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Which of the following is not true of the lac operon?
A. Transcription produces a single polycistronic mRNA containing the lacZ, lacY, and lacA genes. B. The lacI gene is controlled from the same promoter as the lacZ gene. C. The Lac repressor protein is constitutively expressed. D. The operator region regulates transcription through interaction with the Lac repressor protein.
After hydrogens and electrons are stripped from NADPH, NADP+:
A. is broken down further to NAD plus phosphate in the Calvin cycle B. is sent to the electron transport chain of cellular respiration C. evaporates from the cell D. is sent to the Krebs cycle E. is recycled back to the light-dependent reactions
Four of the following are features found exclusively among all vertebrates. Which one is the exception?
a. notochord
b. pharyngeal gill slits
c. four legs
d. post-anal tail
e. dorsal nerve cord
Truffles, the spore-containing structure of a ________, are eaten as a delicacy
Fill in the blank(s) with correct word