Downloaded 10 times
More Related Content
Seeds desperal
- 2. How do seedsget dispersed? Seed can be dispersed in various manners; this is normally dependant on the physical characteristics of the seed or seed coat or the fruit containing the seed.
- 3. Flowering plants havedifferent adaptations to enable their seeds to be dispersed as far away as possible. The different methods of seed dispersal are… by wind by animals by water by splitting open forcefully
- 4. Seed contained in ediblefruit can be distributed by animals which eat the fruit and then eventually excrete them in another location. Examples: Bats, monkeys, squirrels, cattle, wild herbivores. Examples : tomato, mango, berries etc. Dispersal by animals (eaten) bright colours sweet juicy
- 5. Certain seeds have burrs,hooks or thorns, the aim of these is to attach themselves to the skin or fur of a passing or foraging animals (or clothes in the case of humans); the animal then moves to another location where hopefully the seed drops and germinates. Examples : Burdock and Foxtail. Dispersal by animals (carried) small hooks stiff hairs How about lovegrass? How does it disperse?
- 6.
- 7. Certain seed is adaptedto dispersal by wind; these normally have a wing that allows the seed to be carried by air currents. Examples : pine seeds (wing), Acer seed (wing), Maple and Dandelion.
- 9.
- 10. Some seeds, particularly of plantsthat grow close to the coast or rivers are adapted to float in order to be distributed away from the parent. Most water plants employ this method of dispersal. Examples : Coconuts, mangrove plants and Lotus Dispersal by water buoyant waterproof air spaces
- 12. Some plants have "exploding"pods that physically throw the seed away from the parent plant. Examples : Impatiens/ Balsam and some legumes. Dispersal by splitting open dry and hard fruit wall
- 13.
- 14. At a glance… Adaptationsfor reproduction plants seed dispersal by wind by water by splitting openby animals Fruits/seeds small light dry wing-like Fruits/seeds buoyant waterproof air spaces Fruits/seeds brightly coloured sweet juicy Fruits/seeds small hooks stiff hairs Fruits/seeds • dry and hard fruit wall
- 15. 1.To move plantsto new locations. 2.Reduces overpopulation and competition for resources in the same location. 3.Extends the physical range of the plants into new ecological regions.
- 16. Seed germination • Seedgermination is a process by which a seed develops into a small plant called seedling.
- 17.
- 18.
- 19. Edible seedS • Manyseeds are edible and the majority of food comes from seeds, especially from cereals, pulses and nuts • Seeds also provide most cooking oils, many beverages and spices. • Seeds are also eaten by animals, and are fed to cattle. Many seeds are used as birdseed.
- 20.
- 21. SEEDS USED ASSPICES
- 22.
- 23.
- 24.
- 25. PITCHER PLANT • PitcherPlant is plant that hunts and even eats frogs, insects, move etc. • It has a pitcher like structure and mouth is covered by a leaf. It has a smell which attracts insects to it. When insects lands on its mouth it gets trapped and can’t get out.
- 27.