Final answer:
Physical appearance and temperament can be coinherited in humans due to genetic factors.
Step-by-step explanation:
Yes, there is evidence that physical appearance and temperament can be coinherited in humans. Genes responsible for temperament are located on the same chromosome as genes responsible for certain facial features. This suggests a genetic link between the two traits. Additionally, studies have shown that certain hand gestures and facial expressions, which are indicators of temperament, can have genetic roots. While environmental factors and the interaction between nature and nurture also play a role in the expression of these traits, genetics has a significant impact on our physical appearance and temperament.