Marine Ecosystem Lecture Organization
Welcome to today's lecture on marine ecosystems. In this session, we will examine the various layers of the ocean and how each layer supports a unique community of organisms.
First, we’ll discuss the sunlight zone, where photosynthesis occurs due to sufficient light. This zone is home to diverse marine life such as fish, whales, and corals. Next, we will transition to the twilight zone, which is deeper and receives limited sunlight. Here, creatures like squid and lanternfish thrive, adapting to the dark environment. Finally, we'll explore the midnight zone, where no sunlight penetrates. This zone is characterized by extreme pressure and cold temperatures, hosting organisms such as deep-sea fish and unique invertebrates.
Throughout the lecture, pay attention to how each zone is interconnected and supports life in different ways.
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.