Aquatic Biomes

What type of water do lakes and ponds contain?

• Saltwater

• Brackish water

• Freshwater

• Contaminated water

What role do algae play in aquatic ecosystems?

• They serve as a primary food source for many aquatic animals.

• They are the main producers of oxygen in the atmosphere.

• They act as predators to control fish populations.

• They provide shelter for aquatic plants.

What is the term for the area where the mouth of a large river meets the sea, characterized by brackish water?

• Delta

• Estuary

• Lagoon

• Cove

What is the primary characteristic of marine biomes?

• They contain freshwater.

• They contain saltwater.

• They are found only in tropical regions.

• They have a high concentration of nutrients.

What is the significance of photosynthesis in aquatic biomes?

• It produces oxygen and organic matter, supporting the food web.

• It decreases water temperature in aquatic environments.

• It filters pollutants from the water.

• It increases the acidity of the water.

What factors influence the distribution of aquatic biomes?

• Temperature, salinity, depth, and light availability.

• Water pH, nutrient levels, and wave action.

• Geographic location, soil type, and humidity.

• Air pressure, wind speed, and terrestrial vegetation.

True or False: Algae is a plant-like organism that serves as food for many animals and is found in both freshwater and marine biomes.

• True

• False

• Sometimes

• Rarely

Which of the following is NOT a freshwater ecosystem: lake, pond, river, or estuary?

• Lake

• Pond

• River

• Estuary

What process do plants use to convert sunlight, carbon dioxide, and water into food and oxygen?

• Photosynthesis

• Respiration

• Transpiration

• Fermentation

What is the importance of estuaries in the environment?

• They serve as nurseries for many marine species and filter pollutants.

• They are primarily used for recreational activities.

• They are areas where freshwater and saltwater mix, but have no ecological significance.

• They are important for agriculture and crop production.