Which statements about sex-limited traits are true? Genes for the trait are present in both genders.
Growing a beard in males is an example of a sex-limited trait.
The traits aren’t expressed physically.
Developing green eyes is an example of a sex-limited trait.

Complete these sentences. if a roller coaster train has a potential energy of 1,500 j and a kinetic energy of 500 j as it starts to travel downhill, its total energy isj. once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to 1,100 j, and its potential energy decreases to j. when the train reaches the bottom of the track and is traveling along the ground, its kinetic energy isj.