Sunburns, characterized as ultraviolet radiation-induced erythema, serve as a counterexample to the assumption that all biological phenomena are functionally defined, as the redness (erythema) is likely a sterile side effect of increased blood flow rather than a phenomenon with a causal role.

Authors

• Person: Not available Organization: Cambridge University Press
  The Problem of Hard and Easy Problems

Sources

• The Problem of Hard and Easy Problems www.cambridge.org Cambridge University Press via serper

Referenced by nodes (1)

• blood flow concept