Combine the given two facts to write a concluding fact. Note that there should be some parts of the first and second facts that are not mentioned in this conclusion fact. Your combined fact should be the result of a chain between the two facts. Chains form when two facts connect together to produce a concluding fact. An example of a chain is: "pesticides cause pollution" (fact1) + "pollution can harm animals" (fact2) → "pesticides can harm animals" (conclusion fact). Parts of the concluding fact overlap with the first and the second fact. To construct such a  concluding fact, a useful way is to borrow the subject from one fact and the ending conclusions from another fact.
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Question: Fact 1: Plants release oxygen during the day but not during the night. 
Fact 2: Oxygen fatigue is a shortage of oxygen reaching the brain.

Answer: Plants can reduce fatigue during the daytime.


Question: Fact 1: Blood type is important for medical reasons. 
Fact 2: Transplants are medical miracles.

Answer: Blood type is important for Transplants.


Question: Fact 1: Aging occurs as cells lose their ability to divide. 
Fact 2: Cell damage also occurs during ageing.

Answer:
cells can be damaged when they lose their ability to divide.