Answer:
Sexual reproduction is advantageous over asexual reproduction because it reduces the rate of mutation accumulation and it allows for snails to have increased genetic variation.
Step-by-step explanation:
The sexual reproduction allows genetic interchange which is very good for both the individuals and the species as a whole. In asexual reproduction, on the other hand, each offspring is genetically identical to every other. This allows for the ongoing accumulation and replication of harmful mutations and little room for adaptation to rapidly changing environments.