instruction:
In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.
question:
Question: Henry noticed that his piece of cake was lighter than his piece of butter. The cake was _____ dense. 
 Answer: less
answer:
A given volume of a denser substance is heavier than the same volume of a less dense substance.


question:
Question: When Sarah wants to lower the amount of electrons that are there, she will use energy at amounts that are 
 Answer: lesser
answer:
Less energy is also needed to remove electrons from larger atoms in the same group of the periodic table.


question:
Question: Gina has longer fingernails than John. Who has more cells on their nails? 
 Answer: Gina
answer:

As the nail grows, more cells are added at the nail bed.