In order for a population to evolve organisms in the population must have differences or?

What is it called when plants lose water though their leaves

Are the earth's ocean floor and continents the same age geologically? why or why not?

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)