In many species, females choose among males on the basis of their ability to provide necessary resources. Males often establish an exclusive area that includes resources that females require for reproduction. This is called a(n) ____
a. home
b. niche
c. zone
d. reproductive area
e. territory
e
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Under the conditions of a given reaction, a positive ?G' means
A) the reaction is spontaneous. B) no energy needs to be added. C) the reaction is at equilibrium. D) work can be done. E) the reaction will not occur.
The root of a carrot serves as
A. Only a translocation sink B. Only a translocation source C. Both a translocation source and sink D. Only a transpiration source
Similar body parts are not always homologous. They may have evolved independently in separate lineages as adaptations to the same ____.
A. reproductive isolation of these groups B. environmental pressures C. reduced genetic variability in these groups D. identical genes in all three groups E. genetic bottleneck
Place the following in correct order from least to most closely related to modern humans: (1 ) orangutans, (2 ) monkeys, (3 ) Homo erectus, (4 ) Australopithecus afarensis
A) 4, 3, 2, 1 B) 1, 2, 3, 4 C) 2, 1, 4, 3 D) 2, 1, 3, 4