Which classification system is defined as artificial, based on a few simple criteria rather than evolutionary relationships?

Prepare for the IB Marine Science SL Exam. Use flashcards and multiple-choice questions with detailed explanations. Master marine ecosystems, ocean currents, and biological resources for success!

Multiple Choice

Which classification system is defined as artificial, based on a few simple criteria rather than evolutionary relationships?

Explanation:
The idea being tested is how classification systems can be artificial—built from a small set of simple criteria rather than looking at evolutionary relationships. An artificial system groups organisms by a few easy-to-observe traits, like color, size, or habitat, without considering how organisms are related by ancestry. That’s why this term fits the description perfectly. The other terms don’t describe a way of classifying organisms: one refers to an organism’s mode of nutrition (autotroph), one to a depth zone in the ocean (bathyal), and one to a coastal landform (tombolo).

The idea being tested is how classification systems can be artificial—built from a small set of simple criteria rather than looking at evolutionary relationships. An artificial system groups organisms by a few easy-to-observe traits, like color, size, or habitat, without considering how organisms are related by ancestry. That’s why this term fits the description perfectly. The other terms don’t describe a way of classifying organisms: one refers to an organism’s mode of nutrition (autotroph), one to a depth zone in the ocean (bathyal), and one to a coastal landform (tombolo).

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