#Question id: 11326
#XL - T Zoology
This soil horizon is characterized as rich in humus and consists of partly decomposed organic material mixed with mineral soil.
#Question id: 11326
#XL - R Botany
This soil horizon is characterized as rich in humus and consists of partly decomposed organic material mixed with mineral soil.
#Question id: 11327
#XL - R Botany
What do podzolized and laterized soils have in common?
#Question id: 11328
#XL - R Botany
The __________ zone is the shallow area around the edge of a lake or pond with rooted vegetation, such as water lilies and pickerelweed.
#Question id: 11329
#XL - R Botany
Which of the following aquatic systems is like a tropical rain forest because of its richness of biological production and diversity of inhabitants?
#Question id: 11330
#XL - T Zoology
Bio geographers have noted that the tropics have more terrestrial species than temperate regions. Which of the following is NOT a plausible explanation for this pattern?