Question

Laminaria and Fucus are examples of

• A. Green algae
• B. Brown algae
• C. Red algae
• D. None of these

Answer 1

The correct option is B Brown algae

• The Phaeophyceae or brown algae, is a large group of mostly marine multicellular algae, including many seaweeds of colder northern hemisphere waters. They play an important role in marine environments, both as food and for the habitats they form. Laminaria is a genus of 31 species of brown algae commonly called as "kelp". Some species are also referred to as tangle.
• This economically important genus is characterized by long, leathery laminae and relatively large size. Fucus, a genus of brown algae, common on rocky sea coasts and in salt marshes of northern temperate regions.
• Adaptations to its environment include bladder-like floats (pneumatocysts), disk-shaped holdfasts for clinging to rocks and mucilage-covered blades that resist desiccation and temperature changes.