Answer:
The theory of E.O. Wilson's theory of Island Biogeography was originally developed as island biogeography, to explain species richness of actual islands, surrounded by water.
It proposes that the number of species found in an undisturbed environment is determined by immigration and emigration. According to him, the species richness will be the same if this island will have an equal number of the immigration and extinction or emigration of species.
Answer:
A, viruses can only infect a range of cells
Answer:
option A.
Explanation:
The correct answer is option A.
Responsible stage suggests the major concern of middle age related to personal situation.
Executive stage is the stage in middle adulthood where people have broader perspective than earlier people care about the world.
Achieving stage is stage of young adults where intelligence is applied to achieve long term goal like career.
Acquisitive stage is a first stage of development which includes all the childhood and adolescence.