1.3 Aquatic Biomes

• What are aquatic biomes characterized by?

  Dominant presence of water
• Aquatic biomes can be divided into freshwater and marine
• What type of water is found in freshwater biomes?

  Freshwater
• What is the water type in marine biomes?

  Saltwater
• Freshwater biomes have high salinity levels.

  False
• Marine biomes have low salinity levels.

  False
• Match the aquatic biome type with its example:

  Freshwater ↔️ Rivers

  Marine ↔️ Coral Reefs
• What is the main difference between freshwater and marine biomes?

  Salinity
• Marine biomes have saltwater, while freshwater biomes have freshwater
• Rivers are examples of marine biomes.

  False
• What type of organisms thrive in marine biomes due to their high salinity?

  Saltwater-adapted organisms
• The salinity of marine biomes is typically around 35 parts per thousand.
• The temperature in marine biomes varies with depth and location
• What are the two main categories of aquatic biomes?

  Freshwater and Marine
• What is the primary environment of aquatic biomes?

  Water
• Aquatic biomes are divided into freshwater biomes and marine biomes.
• Freshwater biomes have high salinity.

  False
• Match the biome with its water type:

  Freshwater Biomes ↔️ Freshwater

  Marine Biomes ↔️ Saltwater
• Freshwater biomes like rivers and lakes support species adapted to low salinity environments.
• What is the typical salinity of marine biomes in parts per thousand (ppt)?

  35 ppt
• The temperature in marine biomes is uniform across all depths.

  False
• In marine biomes, light availability decreases with depth.
• What are some examples of organisms found in marine biomes?

  Fish, coral, plankton
• Coral reefs are examples of shallow, sunlit marine biomes.
• Match the marine biome type with its example:

  Open Ocean ↔️ Pelagic zone

  Deep-Sea ↔️ Hydrothermal vents

  Estuaries ↔️ Salt marshes
• Estuaries are coastal areas where freshwater meets saltwater.
• What is a characteristic of the deep-sea biome?

  Extreme pressure
• Arrange the steps of the scientific method in the correct order:

  1️⃣ Make an observation

  2️⃣ Form a hypothesis

  3️⃣ Test the hypothesis with an experiment

  4️⃣ Analyze the data

  5️⃣ Draw a conclusion
• What is a defining characteristic of coral reefs?

  Shallow, sunlit ecosystems
• The open ocean is characterized by its vastness and varied marine life, from tiny plankton to massive blue whales
• Where do estuaries occur in marine biomes?

  Coastal areas
• What are two examples of deep-sea environments?

  Hydrothermal vents, abyssal plains
• Freshwater biomes have a much lower salt concentration compared to marine biomes
• The water type in freshwater biomes is freshwater
• What is the typical salinity range in freshwater biomes?

  Less than 0.5 ppt
• What are three examples of freshwater biomes?

  Rivers, lakes, wetlands
• Freshwater biomes support a range of plant and animal life adapted to freshwater conditions
• The salinity in freshwater biomes is typically around 35 ppt

  False
• What is the water type in marine biomes?

  Saltwater
• The salinity in marine biomes is typically around 35 parts per thousand