______is a halophytic alga.

(a)

Chlamydomonas

(b)

Gelidium

(c)

Dunaliella

(d)

Vaucheria

Scalariform conjugation is seen in ________

(a)

Nostoc

(b)

Zygnema

(c)

Ulothrix

(d)

Volvox

The oldest recorded alga is __________

(a)

Grypania

(b)

Gnetum

(c)

Pandorine

(d)

Volvox

_____ is commonly called sea palm.

(a)

Gelidiella

(b)

Postelia

(c)

Gracilaria

(d)

Dunaliella

Xylem vessels are seen in ____

(a)

Selaginella

(b)

Gnetum

(c)

Cycas

(d)

Pinus