Refer to the accompanying figure. In which portion of the bone does red blood cell production occur?
a. B
b. C
c. J
d. H
e. I
c
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A hole in the inner mitochondrial membrane means that there is a(n) __________ in the
concentration gradient of H+ ions.
a. increase b. decrease
The proper order of predator-prey relationships is
a. herbivore-producer-carnivore. b. carnivore-producer-herbivore. c. herbivore-carnivore-producer. d. producer-herbivore-carnivore. e. carnivore-herbivore-producer.
Both bacteria and fungi digest food by
A) ingesting previously decomposed molecules. B) forming food vacuoles through phagocytosis. C) secreting enzymes and then absorbing the smaller molecules. D) photosynthesis. E) eating only small organisms that they can engulf.
Ergometrine, which is used to stimulate labor contractions, is a product of
A. Claviceps purpurea. B. Aspergillus C. Amanita phalloides. D. Exophiala. E. Piedraia hortae.