On germination,each zygospore of $Spirogyra$ gives rise to:

Algae are known to reproduce asexually by a variety of spores under different environmental conditions. Name these spores and the conditions under which they are produced.

Number of flagella present in the gametes of $Ulothrix$ is

Amongst plants,which one of the following groups has been classified on the basis of pigments?

Identify the gametes shown in the given figure and select the correct option.

Sex organs of thallophytes are generally