I WONDER - Why Did The Apatosaurus Have A Long Neck And Tail?

The video discusses the Apatosaurus, focusing on its long neck and tail. The neck, capable of reaching up to 35 feet, was likely used to access high vegetation. The tail served as a defensive tool against predators, possibly used in a whip-like motion. Additionally, the tail contributed to the dinosaur's balance.

What is one possible use of the Apatosaurus's long neck?

What is suggested about the balance of the Apatosaurus?