Four groups of students plan scientific investigations to answer four questions for the science fair. Which question would most likely be answered with an experimental investigation?

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Which best explains how this maneuver unblock a person's airway?

The images show the wings of a bat and a bee. from this evidence, what can you conclude about the evolutionary relationship between these organisms? a. the wing structures of the bat and the bee are different, indicating they didn’t inherit wings from a common ancestor. b. the wing structures of the bat and the bee are different, indicating they inherited wings from a common ancestor. c. the functions of bat wings and bee wings are the same, indicating they obtained wings from a common ancestor. d. the functions of bat wings and bee wings are different, indicating they didn’t obtain wings from a common ancestor.

15 ! come and answer! a(n) is the general term for an infectious disease that has spread across a city, region, or country.