Elsa is a one-year-old infant. her mother notices that while playing in the garden, elsa often picks up tiny insects and worms by making a tight fist. a few months before, she had only been able to pat the insects and not pick them up as they were so tiny. this is an example of

The development observed is an example of a pincer grasp.

Explanation:

The strength of the muscles in infants is the least as they are not used to expansion and contraction in a young age. As the muscles are started being used extensively, it goes on becoming easy to control and use them as one wants. The neural connections of the muscles with the brain go on developing with increasing age up to a certain age where they get completely matured.