Archaeal and bacterial pili are identical in structure and function.
Answer the following statement true (T) or false (F)
False
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In _____ selection, individuals intermediate in a phenotypic distribution have greater reproductive success.
A. stabilizing B. directional C. disruptive D. balancing E. negative frequency-dependent
Most deserts occur near ____ latitude because of the presence of dry descending air masses
a. 0
Food moved to the back of the mouth by the tongue causes all of the following EXCEPT
A. the swallowing center stimulates successive waves of muscle contraction in the esophagus. B. covering the opening of the larynx by the epiglottis. C. pressure against the pharynx to initiate swallowing. D. elevation of the soft palate to seal off the nasal cavity. E. churning of the stomach contents.
In liverworts, when are the pores (not true stomata) open?
a. daytime b. nighttime c. they do not close d. they are never open