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.

Q: Question: When a device become less efficient, its production of usable energy will go 
 Answer: down

A: The more efficient a device is, the greater the percentage of usable energy it produces.
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Q: Question: If a dog is extremely unfit and unhealthy breeders will want it to have 
 Answer: less offspring

A: Genotypes with greater fitness produce more offspring and pass more copies of their alleles to the next generation.
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Q: Question: Leo notices a large amount of stored glucose in his cell. Ray notices zero stored glucose in his cell. Whose cell likely underwent less photosynthesis? 
 Answer: Ray

A:
As photosynthesis increases, the amount of stored glucose in the guard cells increases.
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