Members of the Archaea typically thrive in conditions of excessive
A. heat.
B. acidity.
C. alkalinity.
D. salinity.
E. All of the choices are correct.
E
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Hydrogen bonds
A. result from attractive forces between molecules with nonpolar ionic bonds. B. result from attractive forces between molecules with polar ionic bonds. C. result from attractive forces between molecules with nonpolar covalent bonds. D. result from attractive forces between molecules with polar covalent bonds. E. are the strongest bonds between molecules.
The risk of predation can sometimes have a significant impact on the foraging choices made by animals
Indicate whether the statement is true or false
The minimum viable population is the
A) smallest number of males needed to maintain a population. B) number of organisms that can reproduce in a population. C) number of organisms that can be spread over a fragmented habitat. D) number of organisms produced by an inbred population. E) smallest number of organisms capable of maintaining a population.
In angiosperms, the process of ________ ensures that the endosperm will develop only in ovules containing a fertilized egg
A) cytogenesis B) meiosis C) double fertilization D) fragmentation