Recent studies have demonstrated that infantile amnesia can occur for explicit memories without affecting implicit memories for the same information.
Is they are random changes I believe they should be mutations
Answer:
The three types of symbiotic relationships are mutualism, parasitism, and commensalism. In mutualism, both organisms gain something, in parasitism, one organism gains and the other loses, and in commensalism, one gains and the other doesn't gain or lose
