This would be a D) "physical model."
It's not natural, because it's not out in nature.
It's not conceptual because that would just be ideas, arbitrary compared to physical ones.
And it's not mathematical, because that would only involve equations, graphs, and tables.
Answer: Living things exhibit growth, movement, reproduction, respiration and metabolism. Living things use energy, respond to stimuli and adapt to their environment. Non-living things do not grow through internal metabolic functions but by adding on from the outside.
Explanation:
The answer is C, predators in the ecosystem because the population of bobcats increased. Which means there are more predators in the ecosystem. Hope this helps.
You would want to know the weather forecast.