It might be 23% because 77% of water covers earth and most of the water is either polluted or salt water.
Their main difference is how they form the daughter cells during cytokinesis. During that stage, animal cells form furrow or cleavage that gives way to formation of daughter cells. Due to the existence of the rigid cell wall, plant cells don't form furrows.
Hope this helps, if not let me know. Also, do you have multiple choice answers? If this isn't one let me know the options and I'm sure I can help.
Insulin levels would increase.
The insulin stimulates the liver to convert excess glucose to glycogen for storage.