instruction:
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.
question:
Fact 1: Cuticle helps prevent water loss, abrasions, infections, and damage from toxins. 
Fact 2: Keratin helps prevent split ends and panthenol smoothes the hair cuticle.
answer:
Keratin helps prevent water loss, abrasions, infections, and damage from toxins.


question:
Fact 1: a drought can change the color of an environment from green to brown. 
Fact 2: Cabbage is damn hard to dehydrate without turning brown.
answer:
A drought can dehydrate an entire environment.


question:
Fact 1: nerves can be used to feel heat and pressure on the skin. 
Fact 2: Sensory neurons run anteriorly from the nerve ring to the sensory organs in the head.
answer:

sensory neurons can be used to feel heat and pressure on the skin.