Answer:
nitrogen base
Explanation:
as it is nitrogen that is fixed to make protein bonds
<span>Thick, yellowish-green mucus coming from the nose is NOT one of the five signs that you need to seek professional help to treat your communicable disease.</span>
Answer:
B. Populations of amphibians in a few local areas have declined dramatically in the last few decades
Explanation:
The continuous, low-level extinction of species that has occurred throughout the World and at least six species of frogs have not been seen for one to three decades and also it has recently been discovered that some species of salamander-specific chytrid has gone into extinction
