A) Cladonia sp.
B) Usnea sp.
C) tyrosine
D) lucine
Correct Answer: D
Solution :
Certain algae are rich in protein, vitamin, are used as food for astronaut, e.g., Chlorella and Spirulina. Algae are photosynthetic organism. So they provide \[{{O}_{2}}\] for respiration and absorbs \[C{{O}_{2}}\] of respiration during photosynthesisChlorella has high efficiency of photosynthesis and is good source of food in space programme. Diatoms : Cell wall of diatoms is highly silicified (L.e., has deposition of \[Si{{O}_{2}}\]). So diatomaceous earth is used as heat insulating materials. Din flagellates are golden brown algae. Some dinoflagellatesproduces toxins which kill the fish e.g., Gymbodinium, Chlamydomonas is not so economically useful.
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