Answer:
Role of organisms in the nitrogen cycle:
Bacteria play a central role: Nitrogen-fixing bacteria, which convert atmospheric nitrogen to nitrates. Bacteria of decay, which convert decaying nitrogen waste to ammonia. Nitrifying bacteria, which convert ammonia to nitrates/nitrites.
Explanation:
I THINK THIS IS SHORT AND EASY
D- The digestive system breaks down your food and your circulatory system takes it throughout your body
One characteristic of domain archaea is their cell walls.
B) increases the genetic variability of the offspring because there are more genes presemt
