OCR General Certificate of Secondary Education (GCSE) Biology Practice Exam

What is the benefit of planting native species in desertificated areas?

1. They require less water than non-native species

2. They are adapted to cope with dry conditions

3. They grow faster than other species

4. They provide more shade

The correct answer is: They are adapted to cope with dry conditions

Planting native species in desertified areas is particularly beneficial because they are adapted to cope with dry conditions. Native species have evolved over time to thrive in specific environmental conditions, which often include their ability to withstand low water availability, high temperatures, and poor soil quality. This natural adaptation allows them to establish and grow more successfully in habitats that have been degraded by desertification. While it is true that native species generally require less water than non-native species, this is a specific case of their overall adaptation, which encompasses a broader range of survival mechanisms. The growth rate of native species compared to others can vary, and they do not necessarily grow faster than non-native species in all situations. Lastly, while some native species may provide shade, the primary advantage lies in their resilience to the harsh conditions typical of desertified areas.