Based on the information provided, it is likely that the specimen can be classified as a living thing. Here's the argument based on the characteristics of living organisms:
1. Growth: The fact that the specimen has doubled in size indicates that it is capable of growth. Growth is a characteristic commonly associated with living organisms as they increase in size and develop over time.
2. Reproduction: The statement that the scientists now have four specimens suggests that the organism has reproduced. Reproduction is another fundamental characteristic of living organisms, where they produce offspring or generate new individuals of the same species.
3. Metabolism: Although not explicitly mentioned, the specimen's ability to perform photosynthesis suggests that it possesses metabolic processes. Photosynthesis is a complex biological process that typically occurs in living organisms, enabling them to convert sunlight and nutrients into energy.
4. Response to the environment: The scientists observe the specimen in different areas of the petri dish throughout the day. This indicates that the specimen can respond to changes in its environment, demonstrating a basic form of behavior or movement, which is also a characteristic of living organisms.
To strengthen the argument further, additional observations could include:
5. Response to stimuli: Scientists could expose the specimen to various stimuli, such as changes in light intensity or temperature, and observe if it reacts or adapts to these stimuli. Responsiveness to stimuli is a key characteristic of living organisms.
6. Homeostasis: Researchers could monitor the specimen's ability to maintain internal stability and balance. This could involve observing its response to fluctuations in environmental conditions, such as maintaining a consistent internal temperature or pH level.
It's important to note that without specific details about the specimen, its structure, and other characteristics, it's challenging to provide a definitive classification. However, based on the information provided, the specimen exhibits several characteristics associated with living organisms, suggesting that it is indeed a living thing.