#Question id: 23356
#General Aptitude
#Question id: 9169
#Unit 9. Diversity of Life Forms
In areas of permafrost, stands of black spruce are frequently observed in the landscape, while other tree species are noticeably absent. Often these stands are referred to as "drunken forests" because many of the black spruce often "lean over" (that is, they are displaced from their normal vertical alignment). What is the most likely explanation for the unusual growth of these forests in this marginal habitat?
#Question id: 4977
#Unit 11. Evolution and Behavior
There are at least a dozen known species in the extinct genus Lystrosaurus. If each species was suited to a quite different environment, then this relatively large number of species is likely due to
#Question id: 12135
#Unit 10. Ecological Principles
#Question id: 2276
#Unit 2. Cellular Organization
The cytoplasm of a bacterium