Final answer:
Ecology is the subject of this question and it explores the interactions of living organisms with their environment, including adaptations and abiotic factors. It also focuses on the idea that all life can tolerate a limited range of conditions and examines strategies for survival.
Step-by-step explanation:
The subject of this question is Ecology. Ecology is the study of the interactions of living organisms with their environment, including the adaptations that enable individuals to live in specific habitats. It also includes the study of how abiotic factors such as rain and temperature affect the distribution of organisms. In the context of the question, ecology explores the idea that all life can tolerate a limited range of conditions, and examines the strategies organisms use to survive in different environments.