Question

In which of the following scientific names, family and common name are correctly mentioned?
(A) Scientific name- Batrachospermum, Family- Rhodophyceae, Common name- Frog’s spawn algae.
(B) Scientific name- Spirogyra, Family- Chlorophyceae, Common name- Water net
(C) Scientific name-Lycopodium, Family-Lycopodiaceae, Common name- Sanjeevani
(D) Scientific name- Selaginella, Family- Lycopodiaceae, Common name- Club moss

Answer 1

Hint: Classification is defined as the grouping of the unknown organism into convenient groups or categories on the basis of easily observable characteristics. It is useful in studying the diverse living organisms present on the earth.

Complete answer: Classification is the grouping of organisms into categories on the basis of observable characteristics. There are 7 kinds of taxonomic categories. Their arrangement is known as taxonomic hierarchy. These are following categories:
> Species
> Genus
> Family
> Order
> Class
> Phylum
> Kingdom
Organisms of the same species have more comparable characteristics as compared to kingdom. Species to kingdom is the hierarchical arrangement of ascending order of categories. Now look at the question, we have to find the correct family, common and scientific name.

Scientific name	Family	Common name
Batrachospermum	Rhodophyceae	Frog’s spawn algae.
Spirogyra	Chlorophyceae	Water silk
Lycopodium	Lycopodiaceae	Club moss
Selaginella	Sellagineaceae	Starry spike moss

Spirogyra belongs to the family Chlorophyceae. Common name of Spirogyra is Water silk. That’s why “Option B” is incorrect.
Lycopodium belongs to the family Lycopodiaceae. Common name of Lycopodium is Club moss. That’s why “Option C” is incorrect.
Selaginella belongs to the family Sellagineaceae. Common name of Selaginella is Starry spike moss. That’s why “option D” is incorrect.
Batrachospermum belongs to the family Rhodophyceae. Common name of Batrachospermum is Frog’s spawn algae.

The correct answer is: “Option A”.

Note: Batrachospermum is a red algae. It contains phycoerythrin and phycocyanin pigments. Presence of these category pf pigments give red colour to the Batrachospermum algae. Plant body of this algae appears as a beaded form to naked eyes. It appears like frog eggs. That’s why it is known as frog’s spawn algae.