Answer:
A. Layer of soil that always stays frozen
Answer:
C) gills
Explanation:
becausethe tadpoles starts to lose its gills and develop teeth. Soon after this their back legs develop, their diet changes and they become carnivorous
Gene coding / DNA replication
Answer:
Mitochondria is the Powerhouse of the cell.
Explanation:
You use your muscles for basically everything you do. So, it wouldn't be more surprising if the muscles need more energy. You need them to have more energy or you wouldn't be able to do anything.
If your asking if you can prove everything by science then no but people will try they will give out theories and try to find solutions that they can't. And if your asking if your able to prove all things that happen/the explanations scientifically then the answer is no. Take how the world was made for example nobody knows how it is made. The scientists are trying to prove it was created by some big bang when in reality nobody really knows that's just a theory. One of many theories.
