MEDIUM
Stage 1 & 2
IMPORTANT
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The Hierarchical arrangement of taxonomic categories in descending order is

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Important Questions on Diversity in Living Organism

MEDIUM
Stage 1 & 2
IMPORTANT

A common characteristic of all vertebrates is

MEDIUM
Stage 1 & 2
IMPORTANT

The canal system is a characteristic feature of

MEDIUM
Stage 1 & 2
IMPORTANT

The plant group that produces spores and embryo but lacks vascular tissues and seeds is 

EASY
Stage 1 & 2
IMPORTANT

A plant having seeds but lacking flowers and fruits belongs to