NEET BIOLOGY

Detailed explanation-1: -Brown algae are a group of algae belonging to class Phaeophyceae. They are named due to their colour, which varies from brown to olive green. They are mostly found in marine environments.

Detailed explanation-2: -INTRODUCTION. Brown algae, the Phaeophyceae (or Fucophyceae; Christensen, 1978), are a class (or division, Phaeophyta; Papenfuss, 1951) of algae consisting mainly of complex, macroscopic seaweeds whose brown color comes from a carotenoid pigment, fucoxanthin, and in some species, various phaeophycean tannins.

Detailed explanation-3: -Kelps and brown “algae" The largest of the chromists are the Phaeophyta, the brown algae–the largest brown algae may reach over 30 meters in length.