Spore:

1. Spores are producing during asexual reproduction.

2. Spores are usually haploid and are borne by the sporophyte.

3. Spore is the first cell of the gametophyte, which germinate to produce gametophyte.

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4. Mostly spores are surrounded by a thick wall to avoid extreme conditions.

Gamete:

1. There are two types of gametes: male and female, involved in sexual reproduction.

2. Gametes are borne by the gametophytes, which are always haploid nature.

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1. The male and femalegametes fuse to form the zygote or zygospores, which develop into sporophyte.

2. Gametes are either naked or covered with very thin wall.