Which question is testable? a. how does changing the amount of water affect the growth of corn? b. is it ethical to use human tissue removed during surgery for scientific research? c. are you happy with your new job? d. will people be disappointed if car insurance rates increase?

State officials are considering constructing a road through a forested wilderness area. this action will likely affect the forest ecosystem in various ways. part a: predict how the construction of a road could negatively affect plants and animals in that ecosystem. (3 points) part b: describe one way that the construction of a road could have a positive impact of the forest ecosystem. (1 point)

What in scientific term why the salty popcorn causes this thirst

What function does the limb sever in each animal? how are the limb bones of the four animals similar? based on these similarities what can be inferred about the evolution of the four animals.