Question

According to the Theory of Island Biogeography, the two main processes controlling the number of species at any given time are…

a. Predation and competition
b. Migration (including immigration and emigration) and extinction
c. Birth and death
d. Humans and weather
e. Natural selection and catastrophes

Answer 1

b. migration and extinction

Step-by-step explanation:

The theory of island biogeography states that the main processes responsible for controlling the equilibrium and number of species on an island are migration (immigration and emigration) and extinction. Immigration refers to the new species that colonize the island, while emigration refers to the species that move to another region. Finally, extinction refers to the number of species that have been previously established but get extinct.