Answer:
The correct answer is "Organs are more complex than the tissues they are made from".
Step-by-step explanation:
An organ is defined by a group of tissues with similar functions. For instance, the heart is an organ and is made of several tissues, including: cardiac muscle, skeletal muscle and sooth muscle. However, organs are more complex than the tissues they are made from. Therefore is not easy to make an artificial heart just by replicating the tissues. Organs work together as a whole to make the functions of the body and are difficult to study and replicate.