Which statement is supported by research on individual differences in motor skills?
a. environmental factors have little impact on sex differences in motor skills. "
b. sex differences in motor skills decrease with age, but remain great throughout childhood."
c. adult involvement in young children s motor activities should focus on the correct technique.
d. the social climate created by adults can enhance or dampen preschoolers motor development.

The statement that is supported by research on individual differences in motor skills is Letter B.

Explanation:

Sex differences in motor skills decrease with age, but remain great throughout childhood.  A recent study show that there are large differences in motor skills between boys and girls.  From the time they were two and a half years old, over a thousand children have been observed by kindergarten teachers over a three month period. The results of the study showed that girls performed better in self-help skills, fine motor skills and general movement skills.

The researchers are now insterested in whether gender differences change over time and how they change. By loooking closely the children's motor skills when they are four years old, the researchers will see how these skills develop and whether or not the gender differences remain over time.

i believe it would be the lungs.

the correct answer is c   with the systems