Main Idea of Biodiversity Importance
In today's lecture, we will discuss the essential role of biodiversity in maintaining ecological balance. Biodiversity refers to the variety of life forms on Earth, including different species of plants, animals, and microorganisms. This diversity allows ecosystems to function effectively and ensures natural sustainability.
We'll explore two main points: first, how biodiversity contributes to ecosystem resilience, and second, how it ensures that natural services—such as pollination, water purification, and climate regulation—are maintained. The more diverse an ecosystem is, the better it can withstand environmental changes and threats, such as climate change and habitat destruction.
By protecting biodiversity, we are not just safeguarding the lives of various species but also securing essential services that humans rely on. Thus, today's discussion will shed light on why preserving biodiversity is crucial for our planet's future.
Note: This question has been adapted from its original format to accommodate a reading-based version. In the official TOEFL exam, speaking and listening sections require verbal responses and audio prompts, which are not represented here. Please note that this adaptation may not fully reflect the nature or difficulty of the official exam. The audio feature for these sections will be available soon.