AP BIOLOGY

Detailed explanation-1: -Seeds dispersed by water are found in light and buoyant fruits, while those dispersed by wind may have specialized wing-like appendages. Animals can disperse seeds by excreting or burying them; other fruits have structures, such as hooks, that attach themselves to animals’ fur.

Detailed explanation-2: -Wind, water, gravity, ballistic (where the seeds are ejected by forceful and often explosive mechanisms) and animals are the main ways seeds are dispersed.

Detailed explanation-3: -The seeds of the orchid plant, dandelions, swan plants, cottonwood tree, hornbeam, ash, cattail, puya, willow herb, are all examples of plants whose seed are dispersed by the wind. In this method of seed dispersal, seeds float away from their parent plant.

Detailed explanation-4: -Seed Dispersal by Animals and Birds Colourful fruits attract animals and birds. When they eat these fruits only the pulpy part is digested in their bodies and the seeds are excreted out by their systems in the form of their dropping, which eventually gives birth to new plants.

Detailed explanation-5: -There are five main modes of seed dispersal: gravity, wind, ballistic, water, and by animals.