Carbon dioxide, water, and energy absorbed by chlorophyll from the sunlight are used to produce carbohydrates. This energy is then used for plant growth and metabolism. Physiology is the study of the processes and functions of living organisms and how these change during growth and under changing environmental conditions. The Prairie Peninsula is a wedge of grassland projecting eastward from the Great Plains into the Midwest. It stretches from western Iowa to Indiana, with outlying extensions as far east as Ohio.
Deciduous forest occurs both north and south of the Prairie Peninsula.
This includes rain, snow, sleet. A savanna is a forest type with widely spaced trees and an understory of grasses and other forbs that require high levels of light. The sub-canopy consists of older trees, young trees, and shrubs, the growth of which has been limited by shade. Although transpiration is a source of water loss in plants, it also serves to transport minerals and nutrients within the plant, and cools the leaves. The term is used here to describe tropical rain forests, which occur in the lowlands around the equator.