1.3 HOW SEEDS ARE SPREAD
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卡片预览 (10 张)
to burst open with a lot of force
explode
when seeds are spread or scattered way from the plant where they formed
seed dispersal
the new plants that grows from a germinate seed
seedlings
like a sponge with lots of holes in it that can filled with air or water
spongy
which seeds would grow better: those in a tomato left on the plant, or those in a tomato eaten by a bird? say why.
the seed eaten by a bird. the birds would spread in its dropping away from the parent plant
do you think peach seeds can be dispersed by animals? say why or why not.
yes, because animals can disperse peach seeds which are colorful and juicy
how can people disperse seeds?
people can plant in their garden and they can also carry the seeds on their clothes and shoes
a water lily seed has a spongy covering. how does this help a water lily to disperse its seeds?
the spongy seed coat has air spaces that can trap air and help the seed to float
why are bean pods usually picked before the weather gets hot and dry?
if the weather is hot and dry, the pods dry out and will explode
apple seeds are dispersed by the drop-and-roll method. how else can the apple seeds be spread?
animals can eat the apple and disperse the seeds in their dropping