How do the blue-green algae help in improvement of agriculture?

How do the red algae prepare their food?

How has the mutation breeding helped in improving crop varieties? Give one example where this technique helped.

How do muscles help in movement of bones ?

Structure found in blue green algae which helps in nitrogen fixation is:

How do biomembrances help in cellular movements?

Why are blue-green algae not popular as biofertilizers?

Why are green algae look green?

How do rain water help in increase of ground water ?

How do leydig's cells help in spermatogenesis?