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Question
Unrelated species that have achieved the same levels of biological improvement belong to the same ______.
Options
subspecies
clade
deme
grade
MCQ
Fill in the Blanks
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Solution
Unrelated species that have achieved the same levels of biological improvement belong to the same grade.
Explanation:
Unrelated species that have achieved the same levels of biological improvement or complexity belong to the same “grade.” A grade groups organisms based on similar levels of organizational complexity or adaptation, regardless of their evolutionary lineage. In contrast, a “clade” groups organisms based strictly on common ancestry.
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