Question

phylum mollusca
what features are shared by all organisms in class gastropoda?
tentacles, fast and agile predators, and complex eyes
a single, spiraled shell and eyes at the ends of tentacles
a hinged shell that is cut into two, a sedentary lifestyle,
and filter feed

Explanation:

• Option A: Gastropods (like snails) are not typically fast and agile predators, and their eyes aren't as complex as described, so A is incorrect.
• Option B: Most Gastropoda (e.g., snails) have a single, spiraled shell and eyes at the ends of tentacles, matching their characteristics.
• Option C: A hinged shell cut into two is a feature of Bivalvia (e.g., clams), not Gastropoda, so C is incorrect.

Answer:

B. a single, spiraled shell and eyes at the ends of tentacles