Final answer:
The three modes of dispersal include Diffusion, Jump Dispersal, and Secular Dispersal. The answer to the question is 'All of the above'.
Step-by-step explanation:
The three modes of dispersal commonly recognized include:
- Diffusion: Gradual movement of populations across hospitable terrain over time.
- Jump Dispersal: Movement of species over long distances to a new habitat, often assisted by humans or natural forces.
- Secular Dispersal: The slow relocation of a species due to changes over geological time scales.
The correct answer to the question "What are the three modes of dispersal" is 4) All of the above.