Question

Study the following and identify the correct combinations

• A. I and III
• B. II and IV
• C. III and IV
• D. I, II and III

Hint:

When evaluating characteristics of animal classes, pay close attention to defining features like heart chambers, reproductive structures (e.g., claspers, egg type), and presence/absence of specific organ systems (e.g., renal portal system). Also, ensure that the given examples correctly belong to the mentioned class.

Answer 1

The Correct Option is A

Step 1: Understand the question.
The question requires evaluating each combination of 'Class', 'Character', and 'Example' provided in the table and identifying which combinations are correct. Step 2: Evaluate each combination individually. \begin{itemize} \item Combination I: Chondrichthyes | Claspers | Scoliodon Class: Chondrichthyes (Cartilaginous fishes) - This class includes sharks, rays, etc.. Character: Claspers - Male cartilaginous fishes possess claspers, which are pelvic fin modifications used for internal fertilization. This character is correct for Chondrichthyes. Example: Scoliodon - Scoliodon (dogfish shark) is an example of a cartilaginous fish. Therefore, Combination I is Correct. \item Combination II: Amphibia | Three chambered heart | Draco Class: Amphibia - Amphibians typically have a three-chambered heart (two atria and one ventricle). This character is correct for Amphibia. Example: Draco - Draco is a genus of gliding lizards, which belong to the class Reptilia, not Amphibia. Therefore, Combination II is Incorrect due to the incorrect example. \item Combination III: Reptilia | Cleidoic egg | Chelon Class: Reptilia - Reptiles are amniotes and typically lay cleidoic (shelled, terrestrial) eggs that are adapted for development on land, preventing desiccation. This character is correct for Reptilia. Example: Chelon - Chelon refers to sea turtles, which are reptiles. Therefore, Combination III is Correct. \item Combination IV: Aves | Renal portal system is absent | Corvus Class: Aves (Birds) - Birds do possess a renal portal system, although it is greatly reduced and less prominent than in reptiles or amphibians. It is not entirely absent. Example: Corvus - Corvus (crow) is an example of a bird (Aves). Therefore, Combination IV is Incorrect because the renal portal system is present, not absent, in Aves. \end{itemize} Step 3: Identify the correct option based on the evaluation.
Based on the analysis, combinations I and III are correct, while combinations II and IV are incorrect. Thus, the correct option listing the correct combinations is (1) I and III. The final answer is $\boxed{\text{I and III}}$.