TASK DEFINITION: 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.
PROBLEM: Fact 1: Plants that shed their leaves seasonally each year are called deciduous plants. 
Fact 2: Trees here are largely deciduous, shedding their leaves in the dry season.

SOLUTION: Plants shed their leaves in the dry season each year.

PROBLEM: Fact 1: Ribosomes are sites where proteins are made. 
Fact 2: Ribosomes attach to the rough ER .

SOLUTION: sites where proteins are made attach to the rough ER.

PROBLEM: Fact 1: touch can be used for detecting texture. 
Fact 2: Nerve endings in the dermis are the source of the body's sense of touch.

SOLUTION:
Nerve endings in the dermis can be used for detecting texture.