Question

which of the following best demonstrates the principle of complementarity of structure and function?

atoms, the tiny building blocks of matter, combine to form molecules such as water and proteins.

the heart and blood vessels circulate blood continuously to carry oxygen and nutrients to all body cells.

bones can support and protect body organs because they contain hard mineral deposits.

the liver, brain, blood vessels, and stomach are each responsible for a necessary activity that no other organ can perform.

Explanation:

To determine the best demonstration of the complementarity of structure and function, we analyze each option:

• The first option describes the formation of molecules from atoms, which is about chemical organization, not structure - function complementarity.
• The second option focuses on the function of the heart and blood vessels (circulating blood) without directly relating it to their structure.
• The third option states that bones can support and protect (function) because they contain hard mineral deposits (structure). This directly shows how the structure (hard mineral deposits in bones) allows for the function (support and protection of body organs).
• The fourth option is about the uniqueness of organ functions, not the relationship between structure and function.

Answer:

C. Bones can support and protect body organs because they contain hard mineral deposits.