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: Urine leaves the body through a sphincter in the process of urination. 
Fact 2: Fluids in the urine eliminate metabolic waste products.
[A]: Metabolic waste products can leave the body through a sphincter.


[Q]: Fact 1: electrocution causes harm to an organism. 
Fact 2: Plants are sensitive organisms.
[A]: electrocution causes harm to plants.


[Q]: Fact 1: Echinoderms use pheromones to communicate with each other. 
Fact 2: All echinoderms are marine and benthic.
[A]:
Marine and benthic animals use pheromones to communicate with each other.