Coastal Ecosystems and Their Dynamics

The video explores biotic factors in intertidal and estuarine ecosystems, highlighting coral reefs, salt marshes, mud flats, rocky shores, and mangrove forests. Each section describes the unique habitats and organisms found in these areas, emphasizing their ecological roles and the threats posed by human activities like pollution and deforestation.

Which of the following habitats is NOT typically found in intertidal zones and estuaries?

• Mangrove forests

• Coral reefs

• Salt marshes

• Deserts

What is the primary role of coral reefs in coastal ecosystems?

• Serving as breeding grounds for birds

• Protecting coastlines from strong waves

• Providing food for herbivores

• Filtering pollutants from water

Why are coral reefs considered sensitive ecosystems?

• They cannot survive in salt water

• They are affected by abrupt changes in water temperature

• They are easily damaged by strong winds

• They require constant sunlight

What are halophytes?

• Birds that migrate to mud flats

• Salt-tolerant plants

• Animals that live in coral reefs

• Plants that grow in freshwater

Which organisms are commonly found in salt marshes?

• Penguins and polar bears

• Clams, mussels, and oysters

• Tigers and lions

• Cacti and succulents

What is a characteristic feature of mud flats?

• They are made of rocky surfaces

• They are always submerged underwater

• They are areas where mud is deposited

• They are covered with dense forests

Which of the following is a common predator found in rocky shores?

• Sea turtles

• Migratory birds

• Crocodiles

• Elephants

What role do mangrove forests play in coastal ecosystems?

• They protect coasts against erosion

• They prevent tidal movements

• They reduce biodiversity

• They increase soil salinity

Which human activity is NOT mentioned as harmful to intertidal and estuarine ecosystems?

• Organic farming

• Deforestation

• Land and water pollution

• Burning of fossil fuels

What is a consequence of human activities on intertidal and estuarine ecosystems?

• Improved water quality

• Increased biodiversity

• Balanced ecosystems

• Unbalanced ecosystems