. Elementary biology; an introduction to the science of life . FiG. 176. Desert plants Cholla cactus on the western deserts. The thickened leaves and short stems, or the entire absence of leaves, may be considered as a more or less direct adaptation to the high temperature and the dry soil, which together make up the danger of excessive loss of water. (From photograph by the United States Reclamation Ser\-ice) 405. Reduction of surface. Some organisms may derive a kind of protection from a reduction of surface. This is espe- cially common among plants that are exposed to the danger of drought.
. Elementary biology; an introduction to the science of life . FiG. 176. Desert plants Cholla cactus on the western deserts. The thickened leaves and short stems, or the entire absence of leaves, may be considered as a more or less direct adaptation to the high temperature and the dry soil, which together make up the danger of excessive loss of water. (From photograph by the United States Reclamation Ser\-ice) 405. Reduction of surface. Some organisms may derive a kind of protection from a reduction of surface. This is espe- cially common among plants that are exposed to the danger of drought. In desert plants we observe a comparatively small surface in proportion to their bulk (Fig. 176).
Size: 2635px × 1897px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, bookpublishe, booksubjectbiology
