Answer:
trapezius muscle
Explanation:
it contracts along the back of the neck to extend the head at the neck and hold it upright also muscle of the chest and upper back are used to move the humerus.
Some infant babies are made entirely of soft,flexible tissue called cartilage that’s slowly replaced by hard bone as the baby develops.
Birds and most land and water animals get along. the birds clean the bugs and old mean off of most animals and that gives them food for babies. but birds are pray to.