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: Protozoa make humans sick when they become human parasites. 
Fact 2: Protozoa Toxoplasma gondii Muscles Nematode Trichinella spiralis Protozoa Sarcocystis sp.

A: Species of Sarcocystis can parasitize humans and make them sick.
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Q: Fact 1: Reptile parents provide little if any care to their young. 
Fact 2: Crocodiles, snakes, and lizards are all types of reptiles.

A: lizards provide little if any care to their young.
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Q: Fact 1: a spider web is used to capture food by spiders. 
Fact 2: Spiders build webs from silk produced in their abdomen.

A:
spiders use silk to capture food.
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