If the theory of inheritance of acquired characters proposed by Lamarck was correct,
1. All the organisms which lost some of their body parts should give birth to the offsprings without the lost parts.
2. Rat which lost their tail should give birth to tail less rats.
3. A handicapped who lost their legs in an accident should give birth to babies v without legs.
4. A body builder’s children should be body builders.
5. But all these are not happening because bodily changes won’t be passed to its offspring.