1-Thallus: Plant body without true stem, root & Leaf.
2-Halophiles: Organism living in salty areas.
3-Plankton: Plants floating passively in water current.
4-Chemosynthetic: Using chemical reactions as energy source.
5-Heterotrophic: Unable to synthesise own food and dependent on others for food.
6-Pathogenic: Disease causing.
7-Plasmodium: Main body of slime mould.
8-Saprophyte: Organism feeding on dead & decaying organic matter.
9-Parasite: Organism which depend on living host for food.
10-Symbionts : Two organisms living together benifitting each other.
11- Plasmogamy : Fusion of cytoplasm.
12- Karyogamy : Fusion of nuclei.
13- Dikaryon : A cell with two nuclei.
14– Dikaryophase : Stage of fungus with dikaryotic cells.
15- Isogamous : Morphologically identical gametes.
16- Anisogamous : Morphologically non identical Gametes.
17- Oogamous : Female gamete oosphere and Male gamete motile.