Pteridophytes such as Selaginella and (i)_______ are (ii)______ as they produce two different kinds of spores.

Options

A. i-Salvinia, ii-homosporous
B. i-Equisetum, ii-heterosporous
C. i-Salvinia, ii-heterosporous
D. i-Equisetum, ii-homosporous

Answer

To solve the question, we need to fill in the blanks regarding pteridophytes that produce two different kinds of spores.

1. **Identify the first blank**: We need to find another pteridophyte that is known to produce two different kinds of spores alongside Selaginella. The term for plants that produce two different types of spores is "heterosporous." A well-known example of a heterosporous pteridophyte besides Selaginella is "Salvinia."

- **First Blank**: Salvinia

2. **Identify the second blank**: Since we are discussing plants that produce two different kinds of spores, we need to use the term that describes this phenomenon. The term for plants that produce two types of spores (male and female) is "heterosporous."

- **Second Blank**: heterosporous

Putting it all together, the completed sentence is:
"Pteridophytes such as Selaginella and Salvinia are heterosporous as they produce two different kinds of spores."