Ken enjoys bird watching. Every summer, he sees many ruby-throated hummingbirds in his garden. However, during the winter, he never sees any ruby-throated hummingbirds. Which of the following is a testable hypothesis that Ken could make to explain the winter absence of the hummingbirds?
Ruby-throated hummingbirds hibernate during the winter.
Where do ruby-throated hummingbirds go in the winter?
Do ruby-throated hummingbirds like cold weather?
Ruby-throated hummingbirds do not like being cold.

Ruby-throated hummingbirds hibernate during the winter.
Where do rub

Question

Ken enjoys bird watching. Every summer, he sees many ruby-throated hummingbirds in his garden. However, during the winter, he never sees any ruby-throated hummingbirds. Which of the following is a testable hypothesis that Ken could make to explain the winter absence of the hummingbirds?
    Ruby-throated hummingbirds hibernate during the winter.
    Where do ruby-throated hummingbirds go in the winter?
    Do ruby-throated hummingbirds like cold weather?
    Ruby-throated hummingbirds do not like being cold.

    Ruby-throated hummingbirds hibernate during the winter.
    Where do rub