Both adenine and thymine are a base pair.
Answer: A: by breaking ans reforming chemical bonds in the molecules
Explanation: There is energy stored in chemical bonds between food molecules (this is referred to as ATP, or Adenosine TriPhosphate, which is the type of energy your body uses). When chemical bonds are created, some energy is stored in those bonds (personally, I like to think that it's because the bonds need energy to stay bonded, but there is no science to prove this). When one of these bonds are broken, the energy that was stored is released, and can then be used by your body. Your body then uses a different type of energy (called ADP, or Adenosine DiPhosphate) to reform the bonds, which then go on to become waste products.
Substances that enter the cell without the expense of cellular ATP, but are too large to directly pass through the membrane, use cesicles in order to gain access to the inside of the cell.
Answer:
I think you're talking about how they survive in the snow. That would be by hibernating.
Explanation:
If you rephrase your question let me know and I can try to help you further :)