Solution:
Porphyra, Laminaria and Sargassum are among the 70 species of edible algae.
Spirogyra is filamentous alga.
Read the following statements :
(i) Agar-agar is used to grow microbes and in the preparations of ice-creams and jellies .
(ii) Chlorella and Spirullina are unicellular algae, rich in proteins and are used as food supplements by space travellers.
(iii) Porphyra, Laminaria and Sargassum are poisonous .
(iv) Algae are photosynthetic .
(v) Spirogyra is a filamentous fungus .
How many of the above statements are incorrect ?
Porphyra, Laminaria and Sargassum are among the 70 species of edible algae.
Spirogyra is filamentous alga.