Answer: c
Explanation: Plants and animals need nitrogen to make proteins but they cannot take it in from the air. Because nitrogen is unreactive as a gas, it has to be transformed into a new molecule. When bacteria in the soil takes nitrogen from the air, it becomes nitrates. Finally, it can move through the food chain in this form.
All viruses have a <span>capsid, that contains there DNA or RNA, never both. </span>
To understand the environment of the fossilized organism to see what it would have ate or drank anything. in the surrounding area.
