Aquatic Ecosystems and Their Characteristics

The video provides an overview of aquatic ecosystems, dividing them into marine and freshwater types. It explains the characteristics and examples of each type, including zones within marine ecosystems like the photic and benthic zones. Freshwater ecosystems are categorized into lentic, lotic, and wetlands. The video also covers artificial ecosystems created by humans and discusses the concept of ecosystem boundaries and ecotones, highlighting the interactions and transitions between different ecosystems.

What are the two main types of aquatic ecosystems?

• Marine and terrestrial

• Marine and freshwater

• Freshwater and terrestrial

• Lentic and lotic

Which zone in a marine ecosystem receives the most sunlight?

• Benthic zone

• Aphotic zone

• Abyssal zone

• Photic zone

What percentage of the Earth's surface is covered by marine ecosystems?

• 97%

• 71%

• 50%

• 0.8%

Which of the following is NOT a type of freshwater ecosystem?

• Lentic

• Lotic

• Wetlands

• Coral reefs

What is the primary characteristic of lentic water bodies?

• Deep

• Salty

• Slow-moving

• Fast-moving

Which organisms are typically found in the benthic zone of a freshwater ecosystem?

• Phytoplankton

• Zooplankton

• Decomposers and scavengers

• Plankton

Which of the following is an example of an artificial ecosystem?

• Wetland

• Mangrove forest

• Coral reef

• Aquarium

What is the term for the overlapping area between two ecosystems?

• Niche

• Habitat

• Biome

• Ecotone

What is the 'edge effect' in ecosystems?

• The effect of sunlight on aquatic life

• The increased biodiversity at the boundary of two ecosystems

• The impact of human activities on ecosystems

• The decrease in species diversity at ecosystem boundaries

How do seabirds contribute to the phosphorus cycle?

• Through their droppings

• By consuming fish

• Through their feathers

• By migrating