cum se vad algele verzi unicelulare la microscop http://www.youtube.com/watch?v=1KJnSZ6oUws alga unicelulara coloniala Volvox - la microscop http://www.youtube.com/watch?v=-V7LTyJuAy4&feature=related
alga verde , cu tal pluricelular, neramificat, filamentos - Spirogyra (matasea broastei), la microscopul optic http://www.youtube.com/watch?v=EnyxzYTZAnQ&feature=related
alge verzi pluricelulare cu tal ramificat http://www.youtube.com/watch?v=SkY3zsiiTkg&feature=related
alge rosii http://www.youtube.com/watch?v=FYWD87C6rYU
alge brune care formeaza adevarate paduri subacvatice http://www.youtube.com/watch?v=Y9eyK6C9nDA