Question

Dispersion:
1.They drift along the current of air
2.some animals eat fleshy fruit and drop the seeds
3.water is used as a medium for dispersion​

Answer 1

Answer:

Seed dispersal—the movement of a seed away from its parent plant, often facilitated by a vector (e.g., animals, wind)—has several potential advantages. On the level of the individual, dispersal provides an opportunity for seedlings to establish themselves away from their parent plants, potentially occupying new and/or more favorable habitats. Dispersal also facilitates more genetic mixing in a population because related individuals are less likely to be clustered close to one another.

The unit of dispersal in angiosperms may be the seed itself, or a seed (or seeds) enclosed within a fruit. Fruits or seeds of angiosperms are often modified to enhance dispersal. Dispersal may occur by a number of different means, including gravity (basically, a simple means of dispersal involving the seed falling and potentially rolling downslope a short distance), wind, water, animals, and ballistic dispersal (adaptations that launch seeds from the fruit). Dispersal syndromes are suites of fruit or seed traits that correlate with certain modes of dispersal. For example, wings are associated with wind-dispersal, whereas fleshy structures are associated with animal dispersal. As with pollination syndromes, dispersal syndromes can be used to infer the likely dispersal mode of a particular fruit or seed type. It should be noted, however, that mode of dispersal may differ from—or may be more variable than suggested by—the structural attributes of a particular type of fruit or seed. Units of dispersal (in this case, fruits or seeds that serve as the units of dispersal) are called diaspores or disseminules.