Seaweeds are an important source of

In Hammerling's nucleocytoplasmic experiments,$Acetabularia$ is used,which is a:

The unique feature of Thallophyta is .........

In which of the following algae is mannitol stored as reserve food material?

The pigment phycoerythrin is characteristic of

Match the following classes of algae with their characteristic colours:
$A.$ Cyanophyceae $a.$ Green colour
$B.$ Chlorophyceae $b.$ Blue-green colour
$C.$ Phaeophyceae $c.$ Red colour
$D.$ Rhodophyceae $d.$ Brown colour