Algae can be single-celled or multicellular. An example of a unicellular algae is Valonia ventricosa.
Lichens
Yes Chlamydomonas is a green unicellular alga.
It's a Lichen
ALGAE is the plural form, commonly used in place of the singular ALGA because references to a single organism are rare.
green alga
yes
green alga :)
no...bird's are not single celled
eukarya
Calvin used the green alga Chlorella as the organism in his experiments on carbon fixation during photosynthesis.
Lichen is a dual organism which is made of a fungus and an alga, associated in a mutually beneficial association.
Lichen. Lichens are symbiotic organisms formed by a fungus and either an alga or a cyanobacterium living together in a mutualistic relationship. The fungus provides structure and protection, while the alga or cyanobacterium provide nutrients through photosynthesis.