A Land Snail, a Clam, and an Octopus All Share

question 58

Multiple Choice

A land snail, a clam, and an octopus all share

• A) a mantle.
• B) a radula.
• C) gills.
• D) embryonic torsion.
• E) distinct cephalization.

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Definitions:

SAT-M Score

The SAT-M score denotes the math section score of the SAT, a standardized test widely used for college admissions in the United States, assessing mathematical proficiency.

Normally Distributed

A descriptor for a dataset or population in which the data follow a bell-shaped curve symmetry about the mean.

Mean Change

The difference in the average values or mean scores of a dataset between two points in time or conditions.

Carbonyl Stretching Frequency

The specific frequency at which the carbonyl group (C=O) vibrates in an infrared spectrum, used to identify the presence of carbonyl-containing compounds.