Question

Precautions and sources of error in an experiment to find out the conditions necessary for the germination of pea seeds

Answer 1

Precautions and sources of error in an experiment to find out the conditions necessary for the germination of pea seeds

Answer 2

A seed is a mature ovule, which is formed after the fertilization.

The outer covering of a seed is called seed-coat which is a protective covering and is known as testa. Seeds contain a small opening called micropyle through which water enters into the seed.

The inner layer below the testa is called tegmen. Inside, seeds contain embryo which consists of cotyledons, radicle and plumule. Seed contains endosperm. However the endosperm is absent in some seeds. Hilum is a scar, where the seed breaks from the stalk of the ovule wall.