A biological species is defined as a a) population or group of populations whose members have the potential to interbreed and produce fertile offspring. b ) group of phenotypically indistinguishable organisms. c ) group of organisms that are phenotypically similar and that share a high proportion of genes. d ) population or group of geographically continuous populations whose members are phenotypically similar. e group of organisms that share an ancestral-descendant sequence.
A. a population or group of populations whose members have the pontential to interbreed and produce fertile offspring