Answer:
E all of these are kingdoms
Explanation:
they just are? I dunno how to "explain" a yes or no thing.
They are like that because they can't always be faulty and may have at least some spark of truth to this theory also as stated earlier a theory in scientific terms is just an observation so it can't really be turned down hence theory.
Nitrogenous bases, double stranded, made of nucleotides, adenine, thymine, cytosine, guanine, A pairs with T, G pairs with C
I'm not sure what you mean by this but here is a diagram of a nephron!! Hope this helps?
The answer to this question is D have a nice day