A simple hypothesis is a type of hypothesis in which there are two variables one of which is independent variable and other one is dependent variable. It is also known as basic hypothesis.
Question : Which hypothesis was proposed by Paul Ehrlich to suggest the importance of species richness in the maintenance of ecosystems?
Option 1: Portfolio hypothesis
Option 2: Redundancy hypothesis
Option 3: Predation hypothesis
Option 4: Rivet Popper hypothesis
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