What is a clade? A. a group of organisms that live in the same ecosystem
B. a group of species placed together because they descended from the same common ancestor
C. a group of organisms that share the same physical characteristics
D. a group of several common ancestors and all of their descendants

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)