Multiple choice

What is the basic unit of classification?

  1. Genus

  2. Family

  3. Kingdom

  4. Species
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Species is the basic unit of biological classification. It represents a group of organisms that can interbreed and produce fertile offspring. While Kingdom is the highest rank, Species is the fundamental, lowest level that serves as the building block for the entire classification hierarchy.

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