Logging and planting trees, USSR 1970s

The video discusses the interaction between boats and fish in marine ecosystems, focusing on the reproductive habits of beluga whales and their role in maintaining fish populations. It also covers the migration of young fish as they venture into the sea, highlighting the dynamic nature of marine life.

What is the primary focus of the relationship between boats and fish in the marine ecosystem?

• To highlight the competition between boats and fish

• To emphasize the importance of their coexistence

• To show how boats can harm fish populations

• To discuss the economic benefits of fishing

How does the beluga whale contribute to the marine ecosystem?

• By competing with fish for food

• By reducing the number of fish

• By depositing its young to help replenish fish populations

• By migrating to different areas

What is the significance of the beluga whale's reproductive behavior?

• It has no impact on the ecosystem

• It causes a decline in fish numbers

• It leads to overpopulation of belugas

• It helps maintain the balance in fish populations

What does the journey of young fish into the sea symbolize?

• Their struggle for survival

• Their growth and adaptation to the marine environment

• Their escape from predators

• Their search for food

In what way do young fish travel to the sea?

• By swimming alone

• As passengers on a special boat

• By following adult fish

• As part of a school of fish