Acclimatization (or physiological adaptation)a. occurs at the individual level during childhood. b. occurs at the individual level throughout an individual’s lifetime. c. occurs at the population level via natural selection. d. involves adaptations specifically to climate change.

b. occurs at the individual level throughout an individual’s lifetime

Explanation:

Adaptation differs from evolution in the sense that, adaptation can occur at different levels and all the time. For example if you take a dog to colder climate it will grow thick fur or if you take it to a hot climate it will lose a little bit of it. Changes during childhood are just part of the development of the body. Changes that occur at a population level via natural selection is evolution is different because adaptation can happen at the organism level but evolution needs be at the population level. If climate change affects an specific habitat animals can adapt to it, but if they develop different traits due to this climate change that would be evolution.