All these muscles participate in inhalation except

Which of the following examples can cause gene flow between populations? a.an increase in predators to a population of zebra b.a volcanic eruption that kills half of a population of mice c.bird droppings that contain seeds from a different location d.a person that sprays a toxin on a group of mosquitoes

Robert wants to know which fertilizer will work the best for his grass. what can he do to explore this inquiry?

What noticeable trend from this graph might be used to make a conclusion?