In succession, the ability of one species to make the area more suitable for another species is called
A. facilitation.
B. tolerance.
C. climax succession.
D. mutualism.
E. inhibition.
Answer: A
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The cell walls of fungi are composed mainly of ____
a. Cellulose b. Lignin c. Chitin d. Pectin e. protein
Asexual reproduction in sac fungi involves production of spores called:a
asci. b. basidia. c. gemmae. d. conidiophores. e. conidia.
Which of the following are important components of the long-distance transport process in plants?
I) the cohesion of water molecules II) a negative water potential III) the root parenchyma IV) the active transport of solutes V) bulk flow from source to sink A) II, III, IV, and V B) I, III, IV, and V C) I, II, IV, and V D) I, II, III, and V
Which statement is false about complex IV?
A) A binuclear center that contains an iron ion and heme-a3 is the site of the reduction of molecular oxygen to water. B) Bacterial and eukaryotic forms of complex IV have very similar structures and number of subunits per functional unit. C) The core structure of the cytochrome c oxidase in complex IV has three conserved subunits. D) Copper ions shift from a +2 oxidation state to a +1 oxidation state as electrons are passed through the complex.