The circulatory system of a whale is considered an organ system because it is composed of different
A) cells.
B) tissues.
C) organs.
D) molecules.
E) heart.

Question

Quizplus · Accepted Answer

The circulatory system of a whale is composed of different organs, such as the heart, blood vessels, and blood. It is not just made up of cells or tissues, and it is larger and more complex than just a collection of molecules. Therefore, choice C (organs) is the best answer.

The Circulatory System of a Whale Is Considered an Organ