In the biology laboratory, a student observed the following specimen.The identification and distinguishing feature of this specimen is:
Correct answer: A. Option A
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation
The figure shows a mussel. Its characteristic is bivalved shell.A mussel is an aquatic mollusk with a soft body protected by a hard, two-part (bivalved) shell. It usually lives in freshwater or marine environments and attaches itself to rocks or other surfaces.In contrast, a slug has a soft, elongated body with no shell So Option A correctly represents the figure.
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