Explanation:
All the human causes of global environmental change happen through a ... Three case studies illustrate the various ways human actions can contribute to ... It is possible to make such a division in numerous ways.
The answer is dusk and dawn.
Crepuscular animals are active during twilight (latin crepusculum). Twilight is a period after dawn and before dusk, so crepuscular animals want to avoid dusk and dawn. Animals' activity in different periods during the day depends on temperature or other biotic factors. It also depends on predators' activities or local competition.
Skin muscle etc.yk look it up too :()
