Pyrenoids are centers for the formation of . . . . . . .

Some characters of algae are given below:
$a.$ Floridean starch
$b.$ Sulphated phycocolloids in cell wall
$c.$ Alginic acid
$d.$ Trumpet hypha
$e.$ Haplodiplontic life cycle
$f.$ Isomorphic alternation of generation
$g.$ Fucoxanthin
$h.$ Phycoerythrin
$i.$ Zygotic meiosis
$j.$ Two anterior flagella
Which of the given set of characters belongs to $Laminaria$?

Which one of the following statements concerning the algae is wrong?

Which of the following is correct for Chlorophyceae?

Which type of sexual reproduction occurs in algae?

Non-motile gametes are characteristically found in