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

the correct answer is: d. the saltine and pretzel are made of flour, yeast, and baking soda, and salt. the pecan contains no flour but it does contain fats. the pecan is a nut that can be consumed as a healthy snack. first of all, pecans are a source of fat (monounsaturated fat), but they provide less fat than some other nuts. pecans are a rich source of dietary fiber, manganese magnesium, phosphorus, thiamin, vitamin e…