If alternation of generations allows for creating young by asexual and sexual means, then what allows for an organism to create young by sexual and asexual means?

Answer choices:
- spread flower seeds
 - remains of prehistoric life
 - peachleaf willow
 - photosynthesis
 - mate with females
 - members of their own species
 - A compound that donates proton
 - alternation of generations

 

        alternation of generations  