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.

[Q]: Fact 1: an animal usually requires a warm body temperature for survival. 
Fact 2: Many warm-blooded animals control their body temperature by sweating or panting.
[A]: warm-blooded creatures control their body temperature by sweating or panting for survival.


[Q]: Fact 1: healing requires rest. 
Fact 2: And, after a full day, relax to a sound and restful sleep in the cool, fresh mountain air.
[A]: Healing requires a sound sleep.


[Q]: Fact 1: Echinoderms use pheromones to communicate with each other. 
Fact 2: Echinoderms and molluscs use adhesives to grip the substrate during locomotion.
[A]:
Echinoderms employ adhesives to grip surfaces.