________ are hollow tube-like structures that hold some archaeal daughter cells together after cell division while___________ are grappling hook-like structures that appear to attach archaeal cells to surfaces.
A. Hami; fimbriae
B. Pili; hami
C. Cannulae; hami
D. Cannulae; pili
Answer: C
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“Efficiency” of a respiration pathway refers to the
(a) number of steps in the pathway. (b) amount of CO2 produced relative to the amount of carbohydrate entering the pathway. (c) amount of H2O produced relative to the amount of carbohydrate entering the pathway. (d) amount of ATP energy produced relative to the energy content of the carbohydrate entering the pathway.
The capacity of the ___________ to store ____________ can limit the rate of carbohydrate production in CAM leaves
A. vacuole; phosphoenol pyruvate B. vacuole; organic acids C. leaf; CO2 D. leaf; HCO3
Adaptive radiation is likely to have led to which of the following?
A. The divergence of a single pea aphid population into two distinct species. B. The evolution of the horse via changes in climate and food supply. C. The long period of equilibrium in a bat species in the Mariana Islands. D. The 1,000 species of Drosophila found dispersed throughout the Hawaiian Islands.
The fossil "hobbits" discovered in Indonesia may be a ________ that lived ________
A) newly discovered species of Homo; as recently as 18,000 years ago B) population of Homo sapiens with a genetic disorder; at the same time as the Neanderthals C) lineage of early hominins; about 5 million years ago D) dwarf lineage of Australopithecus; around the same time as "Lucy"