Character states shared by the ancestor or outgroup of a clade are called
A. derived traits.
B. homoplasies.
C. synapomorphies.
D. plesiomorphies.
E. symplesiomorphies.
E. symplesiomorphies.
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In most land ecosystems, ____ food chains predominate
a. decomposer b. detrital c. producer d. consumer e. grazing
If you were working with a patient and were told urine was blocked at the last step before exiting the body, you would try to find a technique or drug to unblock the
A. uvula. B. renal vein. C. nephron. D. urethra. E. ureter.
Which of the following is a phototroph?
A) a tree B) a mushroom C) soil bacterium D) an earthworm E) a person
While examining a rock surface, you have discovered an interesting new organism. Which of the following criteria will allow you to classify the organism as belonging to Bacteria but not Archaea or Eukarya?
A) Cell walls are made primarily of peptidoglycan. B) The organism does not have nucleus. C) The lipids in its plasma membrane consist of glycerol bonded to straight-chain fatty acids. D) It can survive at a temperature over 100°C.