home *** CD-ROM | disk | FTP | other *** search
/ Treasures of the America…Museum of Natural History / Treasures of the American Museum of Natural History.iso / pc / treasure / tr13 / t13pg04.pic (.png) < prev    next >
Macintosh Picture Format  |  1996-09-10  |  186.9 KB  |  640x310  |  8-bit (214 colors)
   ocr: Many of the microscopic residents, - particularly the protozoa and algae, are 15) 6 restricted to the water-filled spaces within leaf fragments and between soil particles or 16 to the thin water films that surround the soil particles. Other organisms, such as acorn 13 weevils, inhabit the forest floor only during 2) 10) hibernation or pupation. Still other species live 2 above the surface and invade the floor only to feed or nest. Certain floor fungi penetrate living roots and cause structural modifications that apparently benefit their host. A root that is symbiotic with such a fungus is call ...