What did bipedalism lead to?

1) the appearance of an S-shaped spine
2) the appearance of a vaulted foot
3) freeing hands for labor
4) enlargement of the hip joint



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.