Atmospheric nitrogen varies widely from location to location, and local shortages occur frequently. b. atmospheric nitrogen cannot be used by most organisms. c. there is very little free nitrogen in the air. d. atmospheric nitrogen exists primarily in the stratosphere and does not come into contact with terrestrial ecosystems.

Describe five factors that influence the value of fuel

What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.

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)