Question

Light influences organisms primarily by affecting which of the following?

Options

• Only root development and soil penetration

• Photosynthesis, flowering, and daily rhythms

• Exclusively reproduction in animals

• Only water absorption and mineral uptake

Answer 1

Light is a crucial abiotic factor that influences multiple physiological processes in organisms. It drives photosynthesis in plants, triggers flowering in many species through photoperiodism, and regulates circadian (daily) rhythms in both plants and animals. Plants in shaded habitats develop different leaf morphologies compared to sun-exposed plants.