Question

Give scientific reasons

Why does a seed does not need food from any external source before germination?

Why seed coat is essential/very important for a seed?​

Answer 1

Answer:

Some viable seeds might not germinate. Many seeds have developed a dormancy (or sleep) period. Seed dormancy is a condition that prevents germination even under optimal environmental conditions.

Water allows the seeds to absorb nutrients from soil fungi, but it also softens the seed coating. Because these seeds have limited viability, the inside embryo will die without fast connection between the soil fungi and seed, a process made possible by water.

Answer 2

Answer:

1. The seed already has the cotyledons and the endosperm for nutrition and it also receives nutrition from the soil it is sowed in.

2. The seed coat helps protect the embryo.

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