Question

Match the morphological features/life processes in Group I with corresponding organisms in Group II.
Group I
P. Water vascular system
Q. Molting
R. Jet propulsion locomotion
S. Lophophore
Group II
1. Cephalopoda
2. Echinodermata
3. Brachiopoda
4. Trilobita

• A. P-2, Q-3, R-1, S-4
• B. P-3, Q-4, R-2, S-1
• C. P-2, Q-4, R-1, S-3
• D. P-4, Q-3, R-2, S-1

Hint:

The key to matching life processes and organisms is understanding the unique characteristics of each group, such as the water vascular system in Echinodermata and molting in arthropods.

Answer 1

The Correct Option is C

To match the morphological features or life processes in Group I with corresponding organisms in Group II, we need to understand the characteristics of each term and the class of organisms they relate to:

1. Water vascular system is a characteristic feature of marine invertebrates belonging to the phylum Echinodermata. It is involved in locomotion, feeding, and respiration. Therefore, P matches with 2 (Echinodermata).
2. Molting, also known as ecdysis, is the process of shedding the exoskeleton to allow growth in arthropods. Trilobita, which are extinct marine arthropods, underwent molting. Therefore, Q matches with 4 (Trilobita).
3. Jet propulsion locomotion is a method of movement that involves expelling water forcefully to propel the organism forward. Cephalopods, like squids and octopuses, use this mode of propulsion. Therefore, R matches with 1 (Cephalopoda).
4. Lophophore is a specialized feeding structure found in certain aquatic animals, such as those belonging to the phylum Brachiopoda. Therefore, S matches with 3 (Brachiopoda).

Thus, the correct matching is: P-2, Q-4, R-1, S-3.