Question

The algae which are called as ‘gulfweed’ are
A. Chlamydomonas
B. Volvox
C. Chara
D. Sargassum

Answer 1

Hint:
Algae is an photosynthetic eukaryotic organisms, which are informally called as algae, which includes a variety of organisms from unicellular type of algae to multicellular algae. Gulfweed is an algae specifically named for Sargassum or holly sea. It is a genus of about 150 species of brown algae.

Complete answer:
Sargassum is commonly called as gulfweed or holly sea which includes genus of 150 different brown species, which are found attached to rocks along the coasts in temperate regions or it occurs as pelagic that is free floating algae in the open sea. This sea is located in the Atlantic Ocean which is seen with masses of floating Sargassum natan is named for the sea. Sargassum species have highly branched thallus with hollow berrylike floats. Most of these species reproduce sexually but species which are found in pelagic form they reproduce through fragmentation. Whereas if we talk about Chlamydomonas which is a genus of green algae has unicellular flagellates and found in damp soil or standing water, Volvox is type of green algae which are found in fresh water and forms spherical colonies, Chara belongs to family characeae and are multicellular and are typically found as land plants.

Hence by above discussion we can easily conclude that the correct option is (D) Sargassum.

Note: Algae has photosynthesis by which they are capable of making their own food but in case of cyanobacteria which is referred to as blue green algae. They come under the category of eukaryotes and exclude the prokaryotes. They reproduce by simpler way of asexual means to the complex way of sexual reproduction.