salient features of algae
Answers
Answer:
heya..
Algae are eukaryotic organisms that have no roots, stems, or leaves but do have chlorophyll and other pigments for carrying out photosynthesis. Algaecan be multicellular or unicellular. Unicellular algae occur most frequently in water, especially in plankton.
Answer:
Salient features of algae :
1. Algae include a group of about of 30,000 species which are generally aquatic (both freshwater & marine).
2. Their size varies from microscopic forms to the filamentous forms.
3. All the members of algae are Chlorophyllus, non-vascular thallophytes.
4. They contain chlorophyll a, carotenes and xanthophylls. Additional pigments occur in specific groups.
5. Mucilage protects algal thallus from desiccation and from epiphytic growth. G. Vascular & mechanical tissues absent.
6. Vegetative and asexual modes of reproduction are very common. Asexual spores are of two types: mitospores and meiospores.
7. They are easily dispersed in aquatic habitat, actively, if motile and passively by water currents, if non-motile.
8. Sex organs are non jacketed.
9. Sexual reproduction usually occurs towards the end of growing season.
10. Embryonic stage absent which is a characteristic feature of thallophyta.
11. Sexual reproduction involves isogamy, anisogamy and oogamy in different groups.
Explanation: