Answer:
Observation
Explanation:
The aspect of science that has to do with the recording of color, shape, and other physical features in order to identify a cell would be <u>observation.</u>
<em>Observation in science is the collection of data via perception or through the use of scientific instruments. Perception generally involves the use of human senses such as sight, touch, taste, and hearing to collect data in order to arrive at a conclusion. </em>
<u>The color, shape, and other physical features of a cell requires a perception of sight. Hence, it involves observation.</u>
The receptor monitors the set point for a variable in the environment. If there is a a stimulus, the receptor signals the control center to produce an effector that will alter the environment and bring it <span>to the set point.
Hence,the right answer is :
</span><span>c. it is the respone to a stimulus</span>
