Um... science quesion...?

Question

Hi. I have this question in Science that we are supposed to answer with our textbooks but I left mine at home and I how wondering if you could help me out. The question is, "List 5 ways that seeds disperse."
I TOTALLY didn't hear about this in class so could you help me out? 10 points.... who gets em?

Answer 1

* Many seeds (e.g. maple, pine) have a wing that aids in wind dispersal.
* The dustlike seeds of orchids are carried efficiently by the wind.
* Some seeds, (e.g. dandelion, milkweed, poplar) have hairs that aid in wind dispersal.
* Seeds with a fleshy covering (e.g. apple, cherry, juniper) which is eaten by animals (birds, mammals) which then disperse the seeds in their droppings.
* Seeds (nuts) which are an attractive long-term storable food resource for animals (e.g. acorns, hazelnut, walnut); the seeds are stored some distance from the parent plant, and some escape being eaten if the animal stores more than it needs, forgets where it has stored the seed, or dies.
* Seeds (burrs) with barbs or hooks (e.g. acaena, burdock, dock) which attach to animal fur or feathers, and then drop off later.
* Seeds of some mangroves are viviparous, they begin to germinate while still attached to the parent. The large, heavy root allows the seed to penetrate into the ground when it falls.
* Some seeds have appendages called elaiosomes, e.g. bloodroot, trilliums and Acacias. Elaiosomes provide food for ants, which usually disperse such seeds.
* Some plants, such as Mucuna and Dioclea, produce buoyant seeds termed sea-beans or drift seeds because they float in rivers to the oceans and wash up on beaches.

Answer 2

1. dispersion by wind
2. dispersion by insects
3. dispersion by plant e.g. rhizopus
4. dispersion by man
5. dispersion by water or rain

Answer 3

I think its something to do with, wind,....pollination etc....not sure