Final answer:
Ecology is the subject that recognizes the dynamic relationship between organisms and their environment, and how environmental alterations produce changes in species characteristics.
Step-by-step explanation:
The subject being described in your question is Ecology. Ecology is the study of the interactions between organisms and their environment, and how environmental changes can influence species characteristics.
The recognition of the dynamic relationship between organisms and their environment is a fundamental concept in ecology. When the environment undergoes alterations, such as climate change or habitat destruction, it can lead to changes in the characteristics of species found within that environment.
For example, climate change can cause shifts in the distribution of species, forcing them to adapt to new conditions or seek more favorable habitats. These adaptations can result in changes in physical characteristics, behavior, or even the genetic makeup of a population.