Snails belong to_________?
Correct answer: A. gastropods
- A. gastropods
- B. bivalves
- C. arthropods
- D. platyhelminthes
Explanation
Snails are gastropods, a molluscan group characterized by a muscular foot and, in most members, a single coiled shell. Bivalves also belong to Mollusca but have two shell valves and include clams and oysters, so students may select bivalves by recognizing only the shell.
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About Concept of Evolution
Evolution is the heritable change in populations over generations, driven by mutation, recombination, natural selection, genetic drift and reproductive isolation. Questions examine variation, adaptation, survival and reproduction, speciation, fossil and anatomical evidence, and the difference between individual acclimatization and evolutionary change in a population.
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