(A) The disadvantage of a low oxidative metabolic rate in large animals can be offset by their ability to convert substantial amounts of glycogen into energy.
(B) The most significant problem facing animals that have used anaerobic glycolysis for energy is the resynthesis of its by-product, glucose, into glycogen.
(C) The benefits to animals of anaerobic glycolysis are offset by the profound costs that must be paid.
(D) The major factor ensuring that a large animal will triumph over a smaller animal is the large animal's ability to produce energy via anaerobic glycolysis.
(E) The great differences that exist in metabolic rates between species of small animals and species of large animals can have important effects on the patterns of their activities.
28. FLUSTERED:
(A) mute (B) calm (C) heavy
(D) ingrained (E) courageous
29. ENDORSE:
(A) provoke criticism (B) receive payment
(C) submit unwillingly (D) oppose publicly
(E) perform quickly
30. EXPIRE:
(A) evolve (B) stabilize (C) come to life
(D) grow to fruition (E) bring to light
31. METAMORPHOSIS:
(A) relief from strain
(B) continuation without change
(C) cyclical motion
(D) dogmatic persistence
(E) varied activity