Olivia uses her elbow joint while lifting a cup. how does her elbow joint make this possible? it separates her arm bones so they move on their own. it connects her arm bones to make movement possible. it connects the biceps and triceps so they both work. it removes any ligaments that would prevent movement.

It connects her arm bones to make movement possible.

Explanation:

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?

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