. Biology; the story of living things. THE STAGE SETT1\(; ' 2^ '• r^' ij^ f^ 1. .l/M/irs Cypress trees have become adapted to live in swampy lands by developing buttressed bases of the trunks and erect growths (knees) from the roots. Tliese enable the tree to get sufficient air. Substratum Anything in which a plant grows or on which an animal comes to rest is known as substratum. Types of soil differ from cold, dense, clayey soils, which though they hold water do not readily give it up to humus that is well aerated, has a high nitrogen content, hokls water, and gives it up readily. The distrib
. Biology; the story of living things. THE STAGE SETT1\(; ' 2^ '• r^' ij^ f^ 1. .l/M/irs Cypress trees have become adapted to live in swampy lands by developing buttressed bases of the trunks and erect growths (knees) from the roots. Tliese enable the tree to get sufficient air. Substratum Anything in which a plant grows or on which an animal comes to rest is known as substratum. Types of soil differ from cold, dense, clayey soils, which though they hold water do not readily give it up to humus that is well aerated, has a high nitrogen content, hokls water, and gives it up readily. The distribution of plants depends to a considerable extent on the kind of soil found in a given locality. For example, mosses and ferns grow in moist soil, while cacti are found in sandy desert soils. Varying soil temperatures are brought about by the kind of soil, whether coarse or fine; by the pre.'^ence of a blanket of living things over it ; by its color (dark soils absorb heat more readily than light-colored soils); and by the water it will hold (wet soils are cooler than dry). Great variations occur in the air content of soils and this again determines the plants and animals found in a given area. Water-soaked soil, for examj^le, contains practically no air and does not ordinarily have a large jjiant or animal population. In some cases a plant adapts itself to water- soaked soil, as seen in th(> bald Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hunter, George W. (George William), 1873-1948; Walter, Herbert Eugene, b. 1867; Hunter, George W. (George William), 1902-. New York, Cincinnati [etc. ] American book company
Size: 1840px × 1358px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorwalterherberteugeneb1867, bookcentury1900, bookpublish
