Yes, because beryllium is less dense and harder than oxygen.
Answer is: false.
<span>According to the principle of base pairing hydrogen bonds could form between adenine and thymine (two hydrogen bonds between this nucleobases) and guanine and cytosine (three hydrogen bonds between this nucleobases).
Adenine and guanine are </span>purine derivatives and thymine and cytosine are pyrimidine<span> derivates.</span>
A scientific theory is a well tested explanation of a natural phenomenon.
What is the increment of change in a series of straight-chain alkanes?
CH
CH3
CH4
CH2
Answer:
CH2
The answer is "A. Volcanic Neck"
