To solve the question, we need to fill in the blanks in the statements provided. Let's go through each statement step by step.
### Step 1: Fill in the First Statement
**Statement:** A genus containing more than one species is called ______ genus, e.g., _______.
- A genus that contains more than one species is referred to as a **polytypic genus**.
- An example of a polytypic genus is **Solanum**, which includes various species such as Solanum tuberosum (potato) and Solanum melongena (brinjal).
**Filled Statement:** A genus containing more than one species is called **polytypic genus**, e.g., **Solanum**.
### Step 2: Fill in the Second Statement
**Statement:** _______ is a collection of dried, pressed and preserved plants mounted on _________ sheets, properly labelled, systematically arranged and available for reference study.
- The collection of dried, pressed, and preserved plants is known as a **herbarium**.
- These plants are mounted on **paper** sheets.
**Filled Statement:** **Herbarium** is a collection of dried, pressed and preserved plants mounted on **paper** sheets.
### Step 3: Fill in the Third Statement
**Statement:** Living fossils are ancient organisms persisting in modern times _______ gradual morphological changes.
- Living fossils are organisms that have remained relatively unchanged over time, so they persist **without** gradual morphological changes.
**Filled Statement:** Living fossils are ancient organisms persisting in modern times **without** gradual morphological changes.
### Step 4: Fill in the Fourth Statement
**Statement:** A ________ is a comprehensive treatise of a taxonomic group, generally a genus or a family, providing all taxonomic data related to that group.
- A comprehensive treatise of a taxonomic group is called a **monograph**.
**Filled Statement:** A **monograph** is a comprehensive treatise of a taxonomic group, generally a genus or a family, providing all taxonomic data related to that group.
### Summary of Filled Statements
1. A genus containing more than one species is called **polytypic genus**, e.g., **Solanum**.
2. **Herbarium** is a collection of dried, pressed and preserved plants mounted on **paper** sheets.
3. Living fossils are ancient organisms persisting in modern times **without** gradual morphological changes.
4. A **monograph** is a comprehensive treatise of a taxonomic group, generally a genus or a family, providing all taxonomic data related to that group.
### Final Selection
Now, we need to find which options correctly fill any two of the statements. After analyzing the options, we find that the last option (D) correctly matches the filled statements for the first and fourth statements.
