Question

Laminaria and Fucus are examples of
A)Green algae
B)Brown algae
C)Red algae
D)None of these

Answer 1

Laminaria is additionally regarded as kelp. It is the biggest and the most complex of the category of algae it belongs to Laminaria and Fucus have a xanthophyll pigment known as the fucoxanthin which affords the characteristic color to them.

Complete answer:
Let us find solution from given options:
Green algae : They have chlorophyll a as the dominant pigment. Chlamydomonas and spirogyra are the well known examples of green algae.
Brown algae : Laminaria and Fucus are both multicellular algae and they belong to the category Phaeophyceae which includes many seaweeds. This class of algae is also known as the brown algae. Most of the brown algae live in marine environments and play an essential role as both meals and habitat for marine life forms.
Red algae : They are known as the Rhodophyta. The well-known example of red algae is sargassum.
None of these : As one of the options is correct this cannot be correct. So, the correct reply is, b that is “Brown algae."

Hence, the correct answer is option (B)

Note: There are about 1,500 to 2,000 species of brown algae worldwide. Some brown algae species such as Ascophyllum nodosum, are additionally part of many research and are of commercial importance.
Most of them have the pigment fucoxanthin which presents the different greenish- brown shade to them. Brown algae are termed as Bryophyta.