The evolutionary biologist Ernst Mayr proposed one of the first species concepts, called the

concept.

Question

The evolutionary biologist Ernst Mayr proposed one of the first species concepts, called the 
 
 concept.

BlackTom AI · Accepted Answer

Question restatement: The evolutionary biologist Ernst Mayr proposed one of the first species concepts, called the ___ concept. There are two blanks to fill: 空白1 and 空白2.

Option 空白1: biological
- This blank should be filled with the word 'biological' to form the recognized term 'biological species concept.' Mayr's influential contribution to species theory is specifically the idea that species are groups of actually or potentially interbreeding populations that are reproductively isolated from other such groups, which is the core of the Biological Species Concept. Using the word 'biological' here correctly frames the concept as defined by reproductive isolation and lineage relationships, rather than, say, morphological similarity alone.

Option 空白2: species
- The second blank is correctly filled with 'species' to complete the familiar terminology 'biological species concept.' Even though the first blank provides the modifier, the full name of the concept requires the noun 'species' to specify the unit that is being defined. Without 'species,' the phrase would be incomplete or nonstandard. Therefore, placing 'species' in 空白2 yields the established concept name discussed in evolutionary biology.

Why other potential interpretations would be misleading:
- If one tried to fill 空白1 with a non-standard term (e.g., 'ecological' or 'phylogenetic'), the resulting phrase would not reflect Mayr’s original proposal as commonly cited in biology, which centers on reproductive isolation as the criterion for species status.
- If one misplaces the second blank or leaves it blank, the term loses its canonical meaning; the widely accepted designation is the 'Biological Species Concept,' not an alternative phrasing.

Summary of correctness: 空白1 should be filled with 'biological' to form the correct modifier, and 空白2 should be filled with 'species' to complete the standard term 'biological species concept.'

The evolutionary biologist Ernst Mayr proposed one of the first species concepts, called the concept.

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