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Breaking down key characteristics to distinguish organisms

The question seems to focus on distinguishing groups with no close relation, possibly from a Vietnamese textbook. A typical distinguishing characteristic could be cell structure, like having prokaryotic vs. eukaryotic cells. This would be a fundamental and stable trait, relevant to classification. I'll focus on that for a clear response.

Analyzing key characteristic for distinguishing distant organisms

The question asks which characteristic best distinguishes non-close groups, which I infer could involve traits like morphology, anatomy, or cell structure. For distant groups, the most fitting would be cell structure. Although, cladistics also emphasizes homologous traits over analogous ones, especially for distant lineages.

Selecting characteristics to distinguish distant groups

In classification, we focus on features that differ greatly when distinguishing unrelated groups. For distant groups, simple and stable characteristics like cell structure or embryological development are ideal since they are less likely to be affected by convergent evolution. Morphological traits also work well in botany and zoology.

Choosing between morphological and functional traits

In biology, morphology is often used to distinguish distant groups, while biochemical/genetic traits are preferred for closely related species. The question suggests distant groups, so morphology seems like the most straightforward trait. But I wonder if it should focus on external morphology or more specific structures and functions.

Thought for 19s