The "age of amphibians" was the _____ period.
A. Carboniferous
B. Silurian
C. Permian
D. Devonian
E. Ordovician
A. Carboniferous
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Explain why a potentially rabid dog is held for up to two weeks to check for clinical signs of rabies. Are humans more similar or dissimilar in this regard?
What will be an ideal response?
The branches of the trachea that enter each lung are the ____
a. pharynx b. vocal cords c. bronchi d. larynx e. epiglottis
A yeast artificial chromosome (YAC) is a ____ that can accommodate large DNA inserts and uses the eukaryote yeast
as a host cell. a. restriction enzyme produced from yeast chromosomes b. labeled nucleic acid used to identify a clone within a genome and c. q arm of chromosome 15 within a cell that encodes for a restriction enzyme and d. cloning vector that has telomeres and a centromere e. cloning vector that has 23 chromosomes
The ____ is shorter in females than it is in males, which explains the greater likelihood of developing bladder
infections in ____. a. ureter; females b. ureter; males c. renal papilla; females d. urethra; males e. urethra; females