Respuesta :

1) pivot
2) knee and elbow
3)hypodermis, epidermis, dermis
Answer to all the question

Answer:

[tex]1. \: ans \: is \: c. \: the \: hinge[/tex]

[tex]2. \: the \: ans \: is \:b . \: knee \: and \: elbow[/tex]

[tex]3. \: ans \: is \: b. \: hypodermis - dermis \\ - epidermis.[/tex]