Answer:
Nitrogen thet cannot be used by organisms. C.
Explanation:
Free nitrogen is simply molecular nitrogen (N2). Nitrogen, in its molecular form, consists of two nitrogen atoms bound together with a tripple bond. Because it is very stable, N2 is typically nonreactive, and takes a lot of energy to break them apart. Among these are the amino acids necessary for life to begin and which are the building blocks DNA is made from. Basically, any nitrogen that is in an organic compound is considered “fixed” nitrogen and N2 is considered to be “free” nitrogen
Answer:
to protect itself against predictors.
more aerodynamic. :)
Answer:
Oxygen is inhaled so that Dioxide can be exhaled, that is just how breathing functions.
Explanation:
We require this system for our survival.
Answer:
<u>Solar energy.</u>
Explanation:
The leaves absorb sunlight, and it is converted into chemical energy.
Hope this helps!
<h2>Option C) Radioactive carbon dating</h2><h3>Hope it helps.. </h3>
