3 Marine ecology exam 2024

Front

What are benthic animals that live on the sea floor called?

Back

Epifauna.

Front

What are organisms that drift freely with ocean currents and cannot swim on their own?

Back

Plankton.

Front

Which of the following is not a major source of organic pollution: Power stations, agricultural runoff, sewage?

Back

Power stations.

Front

What is the process called where ecological communities undergo changes over time?

Back

Ecological succession.

Front

Why are most marine animals found in the photic zone?

Back

The sunlight in that area allows for photosynthesis.

Front

What is the term for the zone in the ocean where sunlight penetrates and supports photosynthesis?

Back

Photic zone.

Front

What is the difference between epifauna and infauna?

Back

Epifauna live on the surface of the sea floor, while infauna live buried within the sediment.

Front

What role do plankton play in marine ecosystems?

Back

Plankton are primary producers and form the base of the marine food web.

Front

What is organic pollution and how does it affect marine life?

Back

Organic pollution refers to the introduction of organic matter into the marine environment, which can lead to oxygen depletion and harm marine organisms.

Front

What is the significance of ecological succession in marine environments?

Back

Ecological succession helps to restore and maintain biodiversity in marine ecosystems after disturbances.