A stimulus is __ the result of sexual reproduction process in which organism grow larger a reaction in change of surrondings a change in a organisms surrondings

## Step 1<br />The term "stimulus" in biology refers to any change in an organism's environment that can cause a reaction in the organism. This change can be physical, such as a change in temperature or light, or it can be biological, such as a change in the organism's food supply.<br /><br />## Step 2<br />The options provided in the question are:<br />- The result of sexual reproduction<br />- Process in which organism grow larger<br />- A reaction in change of surroundings<br />- A change in a organism's surroundings<br /><br />## Step 3<br />The first two options, "The result of sexual reproduction" and "Process in which organism grow larger", are not related to the definition of a stimulus. They are processes that occur within an organism, but they do not cause a reaction in the organism.<br /><br />## Step 4<br />The third option, "A reaction in change of surroundings", is not a correct definition of a stimulus. A stimulus is not a reaction, but rather a change in the environment that causes a reaction.<br /><br />## Step 5<br />The fourth option, "A change in a organism's surroundings", is the correct definition of a stimulus. A stimulus is a change in the environment that causes a reaction in the organism.