Question

Which of the following is an example of how light influences terrestrial animals?

Options

• It regulates the animal's metabolic rate exclusively

• It determines soil nutrient availability

• It influences pigmentation, reproductive activities, and orientation behaviours

• It controls water absorption in insects

Answer 1

In terrestrial animals, light influences pigmentation, reproductive activities (especially in birds), and orientation behaviours. Examples include nocturnal activity in moths and solar orientation in bees, showing how light affects animal physiology and behaviour.