Two systems that undergo very rapid development during infancy are the muscular system and the nervous system.

Question

Quizplus · Accepted Answer

The muscular system and nervous system both undergo rapid development during infancy. Newborns have limited muscle control and reflexes, but they quickly develop stronger muscles and better coordination. Similarly, the nervous system rapidly develops, allowing infants to make more complex movements and respond to stimuli with greater precision.

Two Systems That Undergo Very Rapid Development During Infancy Are