The diagram on the right shows a germinating broad bean seed - Leaving Cert Agricultural Science - Question a - 2011

The part labelled B is referred to as the Radicle. This is the embryonic root that anchors the plant into the soil.

1. Suitable temperature or warmth: Seeds require specific temperatures to activate enzymes that promote germination.

2. Water or moisture: Sufficient moisture is essential for seeds to swell and activate metabolic processes.

3. Oxygen or air: Seeds need oxygen for respiration when they begin the germination process.

1. Wind: Seeds are often lightweight and have structures such as wings or parachutes that enable them to be carried away by the wind.

2. Animal: Some seeds attach to the fur or feathers of animals, while others are eaten and later excreted, allowing them to grow in new locations.