Which of the following is an example of primary succession?
Plant communities are established in a lifeless environment, usually devoid of soil
A succession of larger plants (trees, shrubs, etc.) following the establishment of pioneer species
A transition from one ecosystem type to another
An ecosystem diversifying, supporting more species and increases in biomass
A plant community becoming simplified with fewer species and less biomass
The streamlined shape found in the body plans of both sharks and dolphins is an example of:
sympatry
convergent evolution
divergent evolution
coevolution
none of these