The number of plants species obtained from a population study of a garden is as follows: Guinea grass (15), Ipomea spp (5), sida spp (7) and Imperata spp (23). What is the percentage of occurrence of Imperata spp?
Carbon (IV) oxide content of the atmosphere is least affected by
The factor that least affects food shortages in sub-saharan Africa is
The epiphytic habitat can best be described as
The highest percentage of energy in an ecosystem occurs at the level of the