Question

Study the following and pick the correct combinations: 

 

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

Hint:

- Polychaeta have parapodia (e.g., Nereis), but Pheretima is an oligochaete.
- Hirudinea have botryoidal tissue (e.g., Pontobdella).
- Anthozoa have polypoid forms (e.g., Adamsia).
- Ctenophora do not have cnidocytes but possess colloblasts for prey capture.

Answer 1

The Correct Option is D

Step 1: Identifying Incorrect Combinations
Polychaeta (I) has parapodia, but the given example Pheretima is incorrect. Pheretima is an Oligochaeta (earthworm).
Hirudinea (II) is correctly associated with botryoidal tissue, and Pontobdella is a valid example.
Anthozoa (III) consists of polypoid forms, and Adamsia (a sea anemone) is a correct example.
Ctenophora (IV) does not possess cnidocytes; instead, they have colloblasts for prey capture, making this an incorrect match.
Step 2: Selecting the Correct Combination
Since Hirudinea (II) and Anthozoa (III) are correctly matched, the correct option is:

\[ \textbf{(4) II, III.} \]