Choose the type of speciation pattern exhibited in this example: Among a species of shrimp in a single reef, larger individuals exhibit a preference for one type of sponge host while smaller individuals exhibit a preference for another.Medium-sized shrimp (offspring of large and small shrimp) do not fit well into either sponge host and have a high mortality rate, and overall adults choose mates that are similar to them in size.

MCQs on how organisms evolve over time, with particular emphasis on natural selection, evolution, speciation, phylogeny and taxonomy, and aspects of genetics and inheritance. As well as the study of population ecology and ecosystems.