Answer:
c
Explanation:
Nitrogen has a number of important uses. It can be used to replace air and eliminate oxidation of materials. Its most important use is in creating ammonia, which in turn is used to make fertilizer and explosives. Liquid nitrogen is used as a refrigerant for very low temperatures
Because they have different Cones. Which simply means that some animals see certain types of colors or even Infrared or Ultraviolet, in which Humans cannot see.
I think it is keystone. If they were not there the population of urchins would go up and the kelp would go down.
Outer Part. it occurs in the outer part of the plant
A hydrogen bond connects the nitrogenous bases of the nucleotides together!
