Answer:
Species with homologous chromosome means the species is diploid.
Step-by-step explanation:
Homologous chromosomes means the chromosomes are present in pair within the species.
Paternal and maternal chromosomes pair up during the process of meiosis. Diploid chromosomes number is represented by 2n. For example: humans have 23 pair of homologous chromosomes.
Thus, a species is diploid if it has homologous chromosomes.