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.

Fact 1: if seeds stick to the fur of an animal then that seed will be transported by the animal. 
Fact 2: Along with the wind, birds are the primary transporters of berries and seed.
Birds can carry seeds in their feathers.

Fact 1: tectonic plates being pushed together causes earthquakes. 
Fact 2: Earthquake tremors and volcanic activity are frequent.
tectonic plates being pushed together causes tremors.

Fact 1: Sperm had to swim from male to female reproductive organs for fertilization. 
Fact 2: What semen is, is a carrier for the sperm contained in it.

semen goes from male to female reproductive organs for fertilization.