Biological theories of intelligence primarily explore the relationship between intelligence and what?

Biological theories of intelligence focus on understanding how intelligence is linked to the brain and its functions. This perspective examines the neurological and physiological underpinnings of cognitive abilities, suggesting that variations in brain structure, neurochemistry, and functioning can influence an individual's intellectual capacity. Research in this area may explore genetic factors, brain development, and how different brain regions contribute to various cognitive processes.

In contrast, the other options pertain to aspects that are related to intelligence but do not specifically align with the core focus of biological theories. Learning styles and social influences are more aligned with psychological and educational frameworks, while environmental factors typically emphasize context and external influences on performance rather than the intrinsic biological components of intelligence. Thus, the emphasis on the correlation between brain functions and intelligence is what makes the correct answer particularly relevant in this context.