Question

why does a seed have ac coat​

Answer 1

The seed coat is the seed's primary defense against adverse environmental conditions. A hard seed coat protects the seed not only from mechanical stress but also from microorganism invasion and from temperature and humidity fluctuations during storage.

Answer 2

The seed coat is the seed's primary defense against adverse environmental conditions.

During germination, the seed coat protects the seed from hydration stress and electrolyte leakage.