Final answer:
Bone growth in length stops by young adulthood due to epiphyseal plate closure, but bones can still increase in thickness afterwards.
Step-by-step explanation:
The statement that all bone growth completely stops by the end of adolescence is False. While it's true that the lengthening of long bones stops around the age of 18 in females and the age of 21 in males due to epiphyseal plate closure, bones can still continue to grow in thickness. This thickness growth is due to appositional growth, which may occur in response to increased muscle activity, such as weight training.