Question
Biology Question on Kingdom Plant
Identify the pair of heterosporous pteridophytes among the following:
A
Selaginella and Salvinia
B
Psilotum and Salvinia
C
Equisetum and Salvinia
D
Lycopodium and Selaginella
Answer
Selaginella and Salvinia
Explanation
Solution
Heterospory involves the creation of spores in two distinct sizes and developmental trajectories: smaller ones known as microspores with a male role, and larger ones referred to as megaspores with a female role. This phenomenon, which is pivotal in the evolution of vascular plants, has ultimately paved the way for the emergence of seeds. Examples of plants showcasing heterospory include Selaginella, Salvinia, Azolla, and others.
Therefore, The correct option is (A): Selaginella and Salvinia