3 What is a function of all organ systems? A Homeostasis B Replication C Transport D Synthesis

## Step 1<br />The question is asking about the function that all organ systems in the body perform. The options provided are: Homeostasis, Replication, Transport, and Synthesis.<br /><br />## Step 2<br />Let's analyze each option:<br /><br />### Homeostasis<br />This is the process by which the body maintains a stable internal environment despite changes in external conditions. All organ systems work together to ensure that the body's internal environment remains constant.<br /><br />### Replication<br />This is the process of creating two identical replicas from one original DNA molecule. This process is not a function of all organ systems.<br /><br />### Transport<br />This is the process of moving substances from one place to another within the body. While this is a function of some organ systems, such as the circulatory system, it is not a function of all organ systems.<br /><br />### Synthesis<br />This is the process of creating complex compounds from simpler ones. This process is not a function of all organ systems.<br /><br />## Step 3<br />Based on the above analysis, the only function that all organ systems perform is homeostasis.