the energy source is primarily the sun, and it drives the cycle by evaporating water from the oceans, lakes, rivers, and even the soil.
So basically water is a polar molicule. So when it comes to the structure, water is able to form many hydrogen bonds and the way the atoms are able to bond together adds to the water's special properties.
It is true that cells spend most of their time dividing. In fact, they spend 78% of their "life" in interphase.
The answer would be the last one because a deletion changes every codon configuration that follows it and thus changes the amino acid that codes for that codon
