The rate of respiration(how fast you breathe) is determined by which amount of a gas in blood? A)oxygen
B)nitrogen
C)carbon dioxide
D)none of the above

Variety of living organisms; includes genetic, species, and ecological types.

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 is the primary function of the nervous system?